This PR exposes additional syncing types to facilitate the development
of a custom syncing strategy based on the existing Polkadot syncing
strategy. Specifically, my goal is to isolate the state sync and chain
sync components, allowing the state to be downloaded from the P2P
network without running a full regular Substrate node. I also need to
intercept the state responses during the state sync process.

The newly exposed types are necessary to implement this custom syncing
strategy.

# Description

We previously set the PoV request timeout to 1.2s based on synchronous
backing, which allowed for 5 PoVs per relay block. With asynchronous
backing, we no longer have a time budget and can increase the value to
2s.

Fixes https://github.com/paritytech/polkadot-sdk/issues/5885

## Integration

This PR shouldn't affect downstream projects.

## Review Notes

This PR can be followed by experiments with Gluttons on Kusama to
confirm that the timeout is sufficient.

This PR backports version bumps and reorganization of the `prdocs` from
`1.11.0` release branch back to master

1. The `CustomFmtContext::ContextWithFormatFields` enum arm isn't
actually used and thus we don't need the enum anymore.

2. We don't do anything with most of the normalized metadata that's
created by calling `event.normalized_metadata();` - the `target` we can
get from `event.metadata.target()` and level we can get from
`event.metadata.level()` - let's just call them direct to simplify
things. (`event.metadata()` is just a field call under the hood)

Changelog: No functional changes, might run a tad faster with lots of
logging turned on.

---------

Co-authored-by: Bastian Köcher <git@kchr.de>

This PR backports:
- node version bump
- `spec_vesion` bump
- reordering of the `prdocs` to the appropriate folder
from the `1.9.0` release branch

# Description

*Removes `sp_weights::OldWeight` and its usage*

Fixes #144

---------

Co-authored-by: Liam Aharon <liam.aharon@hotmail.com>

with the deprecation of Rococo, Encointer needs a new staging
environment. Paseo will be Polkadot-focused and westend Kusama-focused,
so we propose to use Westend

## Overview

This PR brings in the new version of prdoc v0.0.6 and allows:
- local schema
- local config
- local template

It also fixes the existing prdoc files to match the new schema.

## todo

- [x] add a brief doc/tldr to help contributors get started
- [x] test CI
- [x] finalize schema
- [x] publish the next `prdoc` cli version (v0.0.7 or above)

---------

Co-authored-by: Egor_P <egor@parity.io>
Co-authored-by: Bastian Köcher <git@kchr.de>