Moved presets to the testnet runtimes (#5327)
It is a first step for switching to the `frame-omni-bencher` for CI. This PR includes several changes related to generating chain specs plus: - [x] pallet `assigned_slots` fix missing `#[serde(skip)]` for phantom - [x] pallet `paras_inherent` benchmark fix - cherry-picked from https://github.com/paritytech/polkadot-sdk/pull/5688 - [x] migrates `get_preset` to the relevant runtimes - [x] fixes Rococo genesis presets - does not work https://gitlab.parity.io/parity/mirrors/polkadot-sdk/-/jobs/7317249 - [x] fixes Rococo benchmarks for CI - [x] migrate westend genesis - [x] remove wococo stuff Closes: https://github.com/paritytech/polkadot-sdk/issues/5680 - Fix for frame-omni-bencher https://github.com/paritytech/polkadot-sdk/pull/5655 - Enable new short-benchmarking CI - https://github.com/paritytech/polkadot-sdk/pull/5706 - Remove gitlab pipelines for short benchmarking - refactor all Cumulus runtimes to use `get_preset` - https://github.com/paritytech/polkadot-sdk/issues/5704 - https://github.com/paritytech/polkadot-sdk/issues/5705 - https://github.com/paritytech/polkadot-sdk/issues/5700 - [ ] Backport to the stable --------- Co-authored-by: command-bot <> Co-authored-by:ordian <[email protected]> (cherry picked from commit 8735c663)