This PR improves the docs for the Timestamp pallet by following our
[Documentation
Guidelines](https://github.com/paritytech/polkadot-sdk/blob/master/docs/DOCUMENTATION_GUIDELINE.md)
more closely.

---------

Co-authored-by: Juan <[email protected]>
Co-authored-by: Francisco Aguirre <[email protected]>

This fixes the broken links in the crate level documentation of the
Examples crate. It also updates the documentation for the Basic Example
pallet by removing the template for documenting a pallet (we now have
[this](https://github.com/paritytech/polkadot-sdk/blob/master/docs/DOCUMENTATION_GUIDELINE.md)
to refer to instead).

Note: I found it unnecessary to provide a link to the doc guidelines as
I don't think this would be where someone should discover them. I also
want to flag some ideas that came while making these minor improvements
in [this
issue](https://github.com/paritytech/polkadot-sdk-docs/issues/27) (for a
subsequent PR) as part of ongoing docs work.

xcm-builder: PayOverXcm supports fallible convertors for asset kind and beneficiary conversion  (#1572)

`PayOverXcm` type accepts two converters to transform the `AssetKind`
and `Beneficiary` parameter types into recognized `xcm` types. In this
PR, we've modified the bounds for these converters, transitioning from
`Convert` to `TryConvert`.

One such use case for this adjustment is when dealing with versioned xcm
types for `AssetKind` and `Beneficiary`. These types might be not
convertible to the latest xcm version, hence the need for fallible
conversion.

This changes required for
https://github.com/paritytech/polkadot-sdk/pull/1333

It seems the old strategy have been depracted more than one year. 
So maybe it's time to clean up old strategy for wasm executor.


---
polkadot address: 15ouFh2SHpGbHtDPsJ6cXQfes9Cx1gEFnJJsJVqPGzBSTudr

---------

Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: Koute <[email protected]>

This PR backports version bumps for `polkadot` and `polkadot-parachain`
from the v1.1.0 release branch

---------

Co-authored-by: Mara Broda <[email protected]>

# Description

Currently the `ExportGenesisState` command in polkadot parachain uses an
asynchronous context to run, which seems to display some warnings. See
the screenshot below:

![Screenshot 2023-09-12 at 17 12
15](https://github.com/paritytech/polkadot-sdk/assets/2722756/0140b48a-2edb-41fa-b046-579d526f8305)

After the changes in this PR, which essentially runs the command in a
synchronous context, the command works properly without any warning.

![Screenshot 2023-09-12 at 18 23
46](https://github.com/paritytech/polkadot-sdk/assets/2722756/31506917-ece2-4a5f-8909-f215cc1ac0de)

The remaining runtimes were added to `construct_benchmark_partials`
macro in order not to fail if the runtime was not included in the
non-exhaustive initial list, similarly to the `construct_async_run` one.

For completeness: tests were made following this
[tutorial](https://docs.substrate.io/tutorials/build-a-parachain/connect-a-local-parachain/).

Removal of verbatim duplication of BABE's `Epoch` struct in the client.

I think is better to have one single definition and wrap the primitive
`Epoch` in a newtype (required because we need to implement the `Epoch`
trait).

Make Preimage pallet use Consideration instead of handling deposits
directly.

Other half of paritytech/substrate#13666.
Depends/based on #1361.

Script for the lazy migration that should be run manually once:
[migrate-preimage-lazy.py](https://github.com/ggwpez/substrate-scripts/blob/master/migrate-preimage-lazy.py).

## TODO

- [x] Migration code.

---------

Signed-off-by: Oliver Tale-Yazdi <[email protected]>
Co-authored-by: Oliver Tale-Yazdi <[email protected]>
Co-authored-by: command-bot <>
Co-authored-by: Francisco Aguirre <[email protected]>
Co-authored-by: Kian Paimani <[email protected]>

When adding this pallet to the [Coretime
Chain](https://github.com/paritytech/polkadot-sdk/pull/1479), this
dependency results in conflicting implementations (rustc error below).
This toml change fixes it.

```
error: failed to run custom build command for `coretime-rococo-runtime v1.0.0 (/home/joe/parity/polkadot-sdk/cumulus/parachains/runtimes/coretime/coretime-rococo)`

Caused by:
  process didn't exit successfully: `/home/joe/parity/polkadot-sdk/target/debug/build/coretime-rococo-runtime-7943703d2770a119/build-script-build` (exit status: 1)
  --- stdout
  Information that should be included in a bug report.
  Executing build command: RUSTFLAGS="-C target-cpu=mvp -C target-feature=-sign-ext -C link-arg=--export-table -Clink-arg=--export=__heap_base -C link-arg=--import-memory  " SKIP_WASM_BUILD="" "/home/joe/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/bin/cargo" "rustc" "--target=wasm32-unknown-unknown" "--manifest-path=/home/joe/parity/polkadot-sdk/target/debug/wbuild/coretime-rococo-runtime/Cargo.toml" "--color=always" "--profile" "release"
  Using rustc version: rustc 1.71.1 (eb26296b5 2023-08-03)


  --- stderr
     Compiling sp-io v23.0.0 (/home/joe/parity/polkadot-sdk/substrate/primitives/io)
     Compiling coretime-rococo-runtime v1.0.0 (/home/joe/parity/polkadot-sdk/cumulus/parachains/runtimes/coretime/coretime-rococo)
  error[E0152]: found duplicate lang item `panic_impl`
      --> /home/joe/parity/polkadot-sdk/substrate/primitives/io/src/lib.rs:1749:1
       |
  1749 | pub fn panic(info: &core::panic::PanicInfo) -> ! {
       | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
       |
       = note: the lang item is first defined in crate `std` (which `bitvec` depends on)
       = note: first definition in `std` loaded from /home/joe/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-unknown/lib/libstd-67dfbacfb4b441ef.rlib
       = note: second definition in the local crate (`sp_io`)

  For more information about this error, try `rustc --explain E0152`.
```

This PR changes the method name of the subscription that provides
JSON-RPC notifications (ie subscription events).
This brings the raw JSON response in sync with the rpc-spec-v2 format.

Changes:
- `chainHead_unstable_follow` to `chainHead_unstable_followEvent`
[spec/chainHead](https://github.com/paritytech/json-rpc-interface-spec/blob/main/src/api/chainHead_unstable_follow.md#notifications-format)
- `transaction_unstable_submitAndWatch` to
`transaction_unstable_watchEvent`
[spec/tx](https://github.com/paritytech/json-rpc-interface-spec/blob/main/src/api/transaction_unstable_submitAndWatch.md#notifications-format)

@paritytech/subxt-team

---------

Signed-off-by: Alexandru Vasile <[email protected]>

The `AssetKind` type parameter of a dispatchable, defined by the user,
might be large — like `xcm::MultiLocation`. To prevent inflating the
size of the `Call` type, we `Box` it.

This changes required for
https://github.com/paritytech/polkadot-sdk/pull/1333

---------

Co-authored-by: Oliver Tale-Yazdi <[email protected]>

Bumps the known_good_semver group with 2 updates:
[serde_json](https://github.com/serde-rs/json) and
[syn](https://github.com/dtolnay/syn).

Updates `serde_json` from 1.0.106 to 1.0.107
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/serde-rs/json/releases">serde_json's
releases</a>.</em></p>
<blockquote>
<h2>v1.0.107</h2>
<ul>
<li>impl IntoDeserializer for &amp;RawValue (<a
href="https://redirect.github.com/serde-rs/json/issues/1071">#1071</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/serde-rs/json/commit/b6e113f2036c52e994ca805e530ee4ffae791f71"><code>b6e113f</code></a>
Release 1.0.107</li>
<li><a
href="https://github.com/serde-rs/json/commit/00626a0a95b3d4cee8d57709f0acc804c1296716"><code>00626a0</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1073">#1073</a>
from dtolnay/rawvalue</li>
<li><a
href="https://github.com/serde-rs/json/commit/b9d296f87d6081afdd590d5a6006737db961302b"><code>b9d296f</code></a>
IntoDeserializer for &amp;RawValue</li>
<li><a
href="https://github.com/serde-rs/json/commit/4ea34a2566ba82a2e602526d0919d23e88c9e5ef"><code>4ea34a2</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1072">#1072</a>
from dtolnay/rawvalue</li>
<li><a
href="https://github.com/serde-rs/json/commit/fe30766ae5c79bfb670b2de1c5596e6e11e22f8c"><code>fe30766</code></a>
Support deserializing from &amp;RawValue</li>
<li><a
href="https://github.com/serde-rs/json/commit/2c22077f0e2decfda5cdfd5821c5f9547d584b76"><code>2c22077</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1062">#1062</a>
from osiewicz/remove_build_rs</li>
<li><a
href="https://github.com/serde-rs/json/commit/04f7758b6eae935237574b25a1e63cf5e281e19e"><code>04f7758</code></a>
fixup! chore: Remove no_btreemap_get_key_value and
no_btreemap_remove_entry.</li>
<li><a
href="https://github.com/serde-rs/json/commit/83bdc5fd4213d94201a3d9ad0f2943da7eba1dd6"><code>83bdc5f</code></a>
Omit return keyword in <code>remove_entry</code></li>
<li><a
href="https://github.com/serde-rs/json/commit/89a274195680d3ea6a2b442ff633b81ccf60bbe4"><code>89a2741</code></a>
Revert &quot;Remove limb_width32 and limb_width64 features&quot;</li>
<li><a
href="https://github.com/serde-rs/json/commit/16e04ceeddfdfad18fb1ae8530695a318fa9bc02"><code>16e04ce</code></a>
fixup! Remove limb_width32 and limb_width64 features</li>
<li>See full diff in <a
href="https://github.com/serde-rs/json/compare/v1.0.106...v1.0.107">compare
view</a></li>
</ul>
</details>
<br />

Updates `syn` from 2.0.32 to 2.0.33
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/dtolnay/syn/releases">syn's
releases</a>.</em></p>
<blockquote>
<h2>2.0.33</h2>
<ul>
<li>Special handling for the <code>(/*ERROR*/)</code> placeholder that
rustc uses for macros that fail to expand</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/dtolnay/syn/commit/5e3f55e684b7e33424b9f551105463418b196eb4"><code>5e3f55e</code></a>
Release 2.0.33</li>
<li><a
href="https://github.com/dtolnay/syn/commit/3e04809f5218c6d5fb2b09a6c55933e785825c75"><code>3e04809</code></a>
Pull in proc-macro2 error placeholder change</li>
<li><a
href="https://github.com/dtolnay/syn/commit/2cd5608a4c37810bb0947b0c161a20695b3ce487"><code>2cd5608</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/syn/issues/1508">#1508</a>
from dtolnay/error</li>
<li><a
href="https://github.com/dtolnay/syn/commit/84cfe09484f6468bc85fb01db11c6a10fcb2d988"><code>84cfe09</code></a>
Fall through to 'Unrecognized literal' error</li>
<li><a
href="https://github.com/dtolnay/syn/commit/a80570c81bf15c9afcf8e2470ab06f60f7a8183d"><code>a80570c</code></a>
Parse rustc's representation of macro expansion error</li>
<li>See full diff in <a
href="https://github.com/dtolnay/syn/compare/2.0.32...2.0.33">compare
view</a></li>
</ul>
</details>
<br />


Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore <dependency name> major version` will close this
group update PR and stop Dependabot creating any more for the specific
dependency's major version (unless you unignore this specific
dependency's major version or upgrade to it yourself)
- `@dependabot ignore <dependency name> minor version` will close this
group update PR and stop Dependabot creating any more for the specific
dependency's minor version (unless you unignore this specific
dependency's minor version or upgrade to it yourself)
- `@dependabot ignore <dependency name>` will close this group update PR
and stop Dependabot creating any more for the specific dependency
(unless you unignore this specific dependency or upgrade to it yourself)
- `@dependabot unignore <dependency name>` will remove all of the ignore
conditions of the specified dependency
- `@dependabot unignore <dependency name> <ignore condition>` will
remove the ignore condition of the specified dependency and ignore
conditions


</details>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

This PR adds test case for successful `send_xcm` for `XcmpQueue`
according to the opened HRMP channel to the sibling parachain.

Submit the outstanding PRs from the old repos(these were already
reviewed and approved before the repo rorg, but not yet submitted):
Main PR: https://github.com/paritytech/substrate/pull/14014
Companion PRs: https://github.com/paritytech/polkadot/pull/7134,
https://github.com/paritytech/cumulus/pull/2489

The changes in the PR:
1. ChainSync currently calls into the block request handler directly.
Instead, move the block request handler behind a trait. This allows new
protocols to be plugged into ChainSync.
2. BuildNetworkParams is changed so that custom relay protocol
implementations can be (optionally) passed in during network creation
time. If custom protocol is not specified, it defaults to the existing
block handler
3. BlockServer and BlockDownloader traits are introduced for the
protocol implementation. The existing block handler has been changed to
implement these traits
4. Other changes:
[X] Make TxHash serializable. This is needed for exchanging the
serialized hash in the relay protocol messages
[X] Clean up types no longer used(OpaqueBlockRequest,
OpaqueBlockResponse)

---------

Co-authored-by: Dmitry Markin <[email protected]>
Co-authored-by: command-bot <>

Upgrades to docify v0.2.3, which includes a fix for
https://github.com/sam0x17/docify/issues/7 and full support for
multi-byte UTF-8 characters

In follow-up to https://github.com/paritytech/polkadot-sdk/pull/1518

Adding extra tests for inclusion pruning. Primarily focusing on various
cases surrounding candidates included in different forks (with different
relay parents).

All cases fall into a few buckets based on 3 degrees of freedom - number
of candidates, number of blocks (height), number of forks + extra case
for pruning multiple heights at once.

Added small tweak to the original pruning function to disregard stale
candidate duplicates which should keep the same behaviour.

---------

Co-authored-by: Tsvetomir Dimitrov <[email protected]>

Enable `runtime-benchmarks` feature for `parachain-common` and
`cumulus-primitives-utility` crates' dependencies.

After adding `runtime-benchmarks = []` under `features` category in
`Cargo.toml` files for the creates, I did run,
> zepter lint propagate-feature --feature runtime-benchmarks --workspace
--fix --feature-enables-dep="runtime-benchmarks:frame-benchmarking"

This changes required for
https://github.com/paritytech/polkadot-sdk/pull/1333

## Summary

Implementations of `SendXcm`'s `validate` should not consume `dest`
and/or `msg` parameters in case of `NotApplicable` error.
This commit aligns expected behavior for `UnpaidRemoteExporter` and
`SovereignPaidRemoteExporter`.

## Testing

Added `remote_exporters_does_not_consume_dest_or_msg_on_not_applicable`
test which checks two possible cases:
- `dest` is local
- no configured exporter for `dest`

We want to be able to (re)set BEEFY genesis in order to (re)start BEEFY
consensus on chains which didn't run it since genesis.

This commit adds privileged helper call to (re)set BEEFY genesis to some
block in the future.

Signed-off-by: Adrian Catangiu <[email protected]>

Closes https://github.com/paritytech/polkadot-sdk/issues/158

In our last FRAME call it was discussed that a likely solution to the ED
imbalances is lazily fixing the pools as they are interacted with.

So, we should add some tiny tolerance to the try-state checks so next
time there's an ED change they don't start failing until they've all
been interacted with.

### Update 12 Sept

Rather than adding tolerance, have replaced the `ensure` with a warning.

---------

Co-authored-by: Ankan <[email protected]>

This pull request changes the `wasm-builder` to skip building the wasm
files when the build process is running on docs.rs.

This PR updates:
- trie-db from 0.27.1 to 0.28.0
- trie-bench from 0.37.0 to 0.38.0 (deb-dependency)


While at it, also adapts the recorder to take into account the newly
added `TrieAccess::InlineValue`.

Needed by:
- https://github.com/paritytech/polkadot-sdk/pull/1153

@paritytech/subxt-team

---------

Signed-off-by: Alexandru Vasile <[email protected]>
Co-authored-by: Bastian Köcher <[email protected]>

This PR brings back the GH Workflow step and some fixes to build the
docker image from the Debian package.

---------

Co-authored-by: EgorPopelyaev <[email protected]>

In follow-up to https://github.com/paritytech/polkadot-sdk/pull/1432

Some additional unit tests for the inclusion struct used in the scraper.

Add logic to check if the `BUILD_RELEASE_VERSION` tag is available in
docker registry, if not calculate the previous version to use as
secondary image. This fix the issue in test using the `secondary image`
and bumping the `NODE_VERSION`. (e.g #1495)

Bumps the known_good_semver group with 1 update:
[clap](https://github.com/clap-rs/clap).

<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/clap-rs/clap/releases">clap's
releases</a>.</em></p>
<blockquote>
<h2>v4.4.3</h2>
<h2>[4.4.3] - 2023-09-12</h2>
<h3>Documentation</h3>
<ul>
<li><em>(derive)</em> Clarify use of attributes within the tutorial</li>
<li>Split sections in the builder and derive tutorials into separate
modules</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/clap-rs/clap/blob/master/CHANGELOG.md">clap's
changelog</a>.</em></p>
<blockquote>
<h2>[4.4.3] - 2023-09-12</h2>
<h3>Documentation</h3>
<ul>
<li><em>(derive)</em> Clarify use of attributes within the tutorial</li>
<li>Split sections in the builder and derive tutorials into separate
modules</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/clap-rs/clap/commit/e9668b364c5a0d259780a3e6d8352203d6f329f5"><code>e9668b3</code></a>
chore: Release</li>
<li><a
href="https://github.com/clap-rs/clap/commit/bc4986e01e4a6c817e4af8dbd91f96c6aae97107"><code>bc4986e</code></a>
docs: Update changelog</li>
<li><a
href="https://github.com/clap-rs/clap/commit/3d53641ca1696fdeafb8e1e87def6b27f1a7d79d"><code>3d53641</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/5122">#5122</a>
from epage/docs</li>
<li><a
href="https://github.com/clap-rs/clap/commit/32586c7b6335f437e6f01a089e7664f9c88ddc09"><code>32586c7</code></a>
docs(tutorial): Split into separate modules per section</li>
<li><a
href="https://github.com/clap-rs/clap/commit/5f6d4a3dadd436899923f27ea6ac62b26198ad91"><code>5f6d4a3</code></a>
docs(tutorial): Split out into a module</li>
<li><a
href="https://github.com/clap-rs/clap/commit/20987de0bd2b9b2720771b0f0572745d2ee91433"><code>20987de</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/5121">#5121</a>
from epage/docs</li>
<li><a
href="https://github.com/clap-rs/clap/commit/9e7404b5996128efcf4d6098b7d4af4eacb04fca"><code>9e7404b</code></a>
docs(tutorial): Attempt to clarify attributes</li>
<li><a
href="https://github.com/clap-rs/clap/commit/db97a2c5be69fa81af80e9cee5d3943bcfc664c4"><code>db97a2c</code></a>
docs(derive): Clarify value attributes are for PossibleValue</li>
<li><a
href="https://github.com/clap-rs/clap/commit/37ba6075a9e3c968a196e73e78e95a1e7c6e9326"><code>37ba607</code></a>
chore: Release</li>
<li><a
href="https://github.com/clap-rs/clap/commit/3234c74a886fdb14abc94b34413d8604d2da0e93"><code>3234c74</code></a>
docs: Update changelog</li>
<li>Additional commits viewable in <a
href="https://github.com/clap-rs/clap/compare/v4.4.2...v4.4.3">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=clap&package-manager=cargo&previous-version=4.4.2&new-version=4.4.3)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore <dependency name> major version` will close this
group update PR and stop Dependabot creating any more for the specific
dependency's major version (unless you unignore this specific
dependency's major version or upgrade to it yourself)
- `@dependabot ignore <dependency name> minor version` will close this
group update PR and stop Dependabot creating any more for the specific
dependency's minor version (unless you unignore this specific
dependency's minor version or upgrade to it yourself)
- `@dependabot ignore <dependency name>` will close this group update PR
and stop Dependabot creating any more for the specific dependency
(unless you unignore this specific dependency or upgrade to it yourself)
- `@dependabot unignore <dependency name>` will remove all of the ignore
conditions of the specified dependency
- `@dependabot unignore <dependency name> <ignore condition>` will
remove the ignore condition of the specified dependency and ignore
conditions


</details>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

`VersionedMigration` has become somewhat widely used for handling
version bumps in migrations the last few months.

It is currently behind the `experimental` feature flag, requiring every
pallet that writes a new migration with version bumps to set up the
`experimental` flag in their own Cargo.tomls, and also for every runtime
using these pallets to explicitly enable the `experimental` flag for
each pallet.

This is becoming quite verbose, and I can only see the number of pallets
requiring the experimental flag increasing for no other reason than
using what has become a commonly used feature.

Additionally, I'm writing migration docs and would like to avoid
stepping through how to use the `experimental` feature to get
`VersionedMigration` working.

Since the feature has been used in production for some time now without
any reported issues, is becoming commonly used and ready to advertise in
docs, I feel this is a good time to make it non-experimental.

# Description

Each time the validator set changes, BEEFY validator keys are converted
to ETH addresses and merkelised into a `keyset_commitment` to be used by
light clients.

This commit downgrades `error` to `debug` when individual conversions
from BEEFY keys to ETH addresses fail, and adds cumulative check that
reports total number of failed conversions, if any, on `error`
log-level.

Fixes https://github.com/paritytech/polkadot-sdk/issues/1305

Signed-off-by: Adrian Catangiu <[email protected]>

Update CI tag for docker vm runners

---------

Co-authored-by: alvicsam <[email protected]>

One assertion was unnecessary because of the check right above it,
second assertion resolves
https://github.com/paritytech/polkadot-sdk/issues/1159

---------

Co-authored-by: Bastian Köcher <[email protected]>

Partially addresses #1400

---------

Co-authored-by: Andrei Sandu <[email protected]>

(would have closed) https://github.com/paritytech/cumulus/issues/2831

Changes:
- Disable runtime logging in benchmarks by building with a specific
profile

---------

Signed-off-by: Oliver Tale-Yazdi <[email protected]>