Clients readiness for Devnet-4

This issue aggregates any changes needed in lean-quickstart for Devnet-4, including:

- PRs and branches from clients
- New flags
- Container images
- Binary builds
- Other requirements

Recommended image tag: `devnet4`

[Pq-devnet-4: High Level Plan](https://github.com/leanEthereum/pm/pull/71)