* Generalize error text

Right now, each time there is an error while executing `substrate-relay`
it will be reported as:

    ERROR bridge Failed to start relay: <Actual cause of error>

This is the case even if the invoked command did not have anything to do
with starting a relayer. Thus this removes this text. Now something like
this would be written:

    ERROR bridge <Actual cause of error>

* Use substrate-relay prefix

* remove support for encoded-call messaging

* continue cleanup

* continue cleanup

* continue cleanup

* more cleanpup

* more cleanup

* fmt

* continue cleanup

* spellcheck

* rename

* fix benchmarks

* mention encoded-calls-messaging tag

* fixing deployments

* fix messages generation

* fmt

* introduce FinalityEngine in relay code

* add FinalityEngine to relay

* spelling

* fix test compilation

* Update relays/lib-substrate-relay/src/finality/source.rs

Co-authored-by: Adrian Catangiu <[email protected]>

Co-authored-by: Adrian Catangiu <[email protected]>

cumulus: b468d0c33eac0adda27080b59ea9b5986ce6469b
polkadot: 827792ca833396c82c726eda0bc2ad32ecddba73
substrate: 666f39b8a22108f57732215de006518738034ba2

bump serde_json to 1.0.79

sync changes from https://github.com/paritytech/substrate/pull/11022

fixed clippy warnings

Signed-off-by: acatangiu <[email protected]>

* fix typos

* clippy fixes

* cumulus: 4e952282914719fafd2df450993ccc2ce9395415
polkadot: 975e780ae0d988dc033f400ba822d14b326ee5b9
substrate: 89fcb3e4f62d221d4e161a437768e77d6265889e

* fix refs

* sync changes from https://github.com/paritytech/polkadot/pull/3828

* sync changes from https://github.com/paritytech/polkadot/pull/4387

* sync changes from https://github.com/paritytech/polkadot/pull/3940

* sync with changes from https://github.com/paritytech/polkadot/pull/4493

* sync with changes from https://github.com/paritytech/polkadot/pull/4958

* sync with changes from https://github.com/paritytech/polkadot/pull/3889

* sync with changes from https://github.com/paritytech/polkadot/pull/5033

* sync with changes from https://github.com/paritytech/polkadot/pull/5065

* compilation fixes

* fixed prometheus endpoint startup (it now requires to be spawned within tokio context)

* merge all similar update_conversion_rate functions

* stall timeout in conversion rate update loop

* fmt

* fix

* ignore errors when dumping logs and container is missing

* fixed typo

* print correct payload length

* increase conversion rate a bit when estimating fee (to avoid message rejects when rate update tx is active)

* fmt

* override conversion rate when message is sent

* spelling + fmt

* add --conversion-rate-override cli option

* try to read conversion rate from cmd output

* fix output

* fmt

This reverts commit ed7def64.

* reinitialize bridge subcommand

* PolkadotToKusama in reinit-bridge

* encode and estimate Rococo/Wococo/Kusama/Polkadot messages

* allow send-message for non-bundled chains

* weight -> dispatch-weight

* fmt

* fix spelling

* more logging in on-demand headerss

* remove `maximal_headers_difference` concept from on-demand-relay

* another leftover from previous on-demand version

* removed extra log

* fmt

* fix ss58 prefixes of Polkadot, Kusama and Westend

* fmt

Substrate: 31d90c202d6df9ce3837ee55587b604619a912ba
Polkadot: 60df3c55c711c2872872d6220f98b2611340e051
Cumulus: a9630551c2cd877952ab769c862af4c81b0ccd3c

* relay balance metrics

* convert balance to "main" tokens in balance metrics

* add balances widgets to maintenance dashboard

* move brnchmarks from Rialto to Millau

* fix limits test

This reverts commit 50ffb5dd.

* The `spec_version` and `transaction_version` query from chain

* fix compile

* Lint

* Custom spec_version and transaction_version

* runtime version params struct opt

* runtime version cli

* cli params

* Add missing types defined

* fix compile

* debug cli

* clippy

* clippy

* Query spec_version and transaction_version same times

* Fix vars

* Wrap option

* Wrap option

* Try fix ci

* Change follow suggestions

* refactor message relay helpers

* single standalone_metrics function

* fixed tests

* clippy + fmt

* removed commented code

* add calls tracing

* fix spelling

* cargo fmt

* -commented code

* fix build again

* post-merge build fix

* clippy + fmt

* refactor finality relay helper definitions

* add missing doc

* removed commented code

* fmt

* disable rustfmt for macro

* move best_finalized method const to relay chain def

* update Rococo version + create relayers fund account

* start finality relay guards when complex relay is started

* Enable off-chain indexing for Rialto & Millau nodes

* cargo fmt --all

* cargo +nightly fmt --all

* fmt is weird.

* Add Beefy pallet to Rialto runtime

* Add Beefy gadget to Rialto node

* Add MMR pallet to Rialto runtime

* Add Beefy pallet to Millau runtime

* Add Beefy gadget to Millau node

* Add MMR pallet to Millau runtime

* Add pallet_beefy_mmr to Millau runtime

* Add pallet_beefy_mmr to Rialto runtime

* Implement MMR and BEEFY APIs in Rialto

* fix unit tests

- should_encode_bridge_send_message_call() tests for new
  runtime encoding resulted from newly added pallets.
- runtime size_of::<Call>() slightly increased from newly
  added pallets.

* fix grumbles

* tighten clippy allowances

* fix more grumbles

* Add MMR RPC to Rialto and Millau nodes

Also implement MmrApi in Millau runtime.

* rialto: use upstream polkadot_client::RuntimeApiCollection

* unify metric names

* refactor standalone metrics

* headers sync metrics

* post-merge fix

* fix compilation

* fmt

* fix dashboards

* fix local dashboards

* update Rococo/Wococo runtime version

* remove commented code

* fixed grumbles

* fmt

* fixed widget names

* Decouple the PoA bridge code from Rialto
* Remove Rialto PoA bridge code
* Remove relays/bin-ethereum code
* Remove relays/client-ethereum code
* Remove modules/ethereum code
* Remove modules/ethereum-contract-builtin code
* Remove PoA bridge documentation
* Remove primitives/ethereum-poa code
* Decouple Rialto from currency-exchange
* Fix building with runtime-benchmarks
* Fix should_encode_bridge_send_message_call test
    Because we removed some runtime modules/pallets, the
    substrate2substrate bridge pallet has a different index within
    the runtime so its calls have a different encoding.
    Update the test to use the new encoding.
* Update readme - no more PoA bridge
* Remove deployments/bridges/poa-rialto
    Also removes:
    - deployments/networks/eth-poa.yml
    - deployments/networks/OpenEthereum.Dockerfile
* Remove deployments/dev/poa-config
* Update deployments readme - no more PoA bridge
* Remove eth-related scripts
    Deletes:
    - deployments/networks/eth-poa.yml
    - scripts/run-openethereum-node.sh
* Remove poa-relay from gitlab-ci
* Dockerfiles to use substrate-relay as default
* Remove modules/currency-exchange code
* Remove primitives/currency-exchange code

Signed-off-by: acatangiu <[email protected]>

* Add relayer strategy

* Add default relayer strategy

* default relayer strategy

* expose relayer strategy

* fix compile

* fix compile

* docs

* Rename Relayer to Relay, keep RelayerDecide

* split `DefaultRelayerStrategy` into `AltruisticRelayerStrategy` and `RationalRelayerStrategy`

* Remove relayer mode

* Remove unused import

* Rename `RelayerStrategy` to `RelayStrategy`

* Add missing docs

* clippy

* clippy

* clippy

* clippy

* Revert `relayer_mode` and add `MixStrategy`

* Add `EnforcementStrategy`

* fix bug and simplify relay strategy

* Update message_lane_loop.rs

* Update messages_target.rs

* clippy

* clippy

* clippy

* clippy

* clippy

* clippy

* clippy

* fix test

* fix test

* test

test

test

fix test