Refresh Rococo<>Wococo runtime integration

[tomusdrw]

The Rococo<>Wococo bridge integration was removed in paritytech/polkadot#3780. We should:

1. Update the git subtree to reference the latest commit from https://github.com/paritytech/parity-bridges-common/tree/polkadot-staging branch.
2. Restore runtime integrations.
3. Run bechmarks again or use existing weights (see Use Automated Benchmarking for Runtimes #391)
4. Use filters similar to Polkadot<>Kusama integration see (https://github.com/paritytech/polkadot/tree/bridges-integration-2)

[svyatonik]

1+2 are done in paritytech/polkadot#4427 + paritytech/polkadot#4452 . Re weights - imo we may use existing weights for R<>W, but for P<>K we'll need to integrate our benchmarks to polkadot/kusama runtime.

So now we're in waiting-for-Rococo/Wococo update state. IDK if we have to initiate it ourselves?

[svyatonik]

Rococo <> Wococo bridge is running