Snowbridge Ethereum Deneb fork preparation (#3029)
- Prepares for the Deneb hardfork on Sepolia testnet on 31 January (needs to be deployed to Rococo before then) - Removes `beacon-minimal-spec` flag for simpler config - Adds test comments --------- Co-authored-by: Ron <[email protected]> Co-authored-by: claravanstaden <Cats 4 life!> Co-authored-by: Alistair Singh <[email protected]>