Protect Poutu-te-rangi

Release

v1.1.3 -- Protect Poutu-te-rangi -- is minor version with additional critical Altair test vectors but with zero substantive changes to the Altair specification.

🙌 Huge shoutout to @potuz for identifying a series of critical Altair fork transition tests that were missing in the consensus vectors 🙌

All clients should run these test vectors immediately!

Additionally, there is iterative progress on Merge specifications. For current Merge interop, please continue to target v1.1.2. We'll batch Merge changes at the end of the month for a new interop target.

PR showing full diff can be found here: #2670

Merge

• Remove notify_consensus_validated (#2660)
• Specify format for --terminal-total-difficulty (#2645)
• base_fee_per_gas to uint256 (#2661)

Testing, repo, etc

• Add new Altair transition tests (#2664)