Post-merge test vectors from Nethermind to Reth

[dapplion]

Using the execution engine API generate blocks of a post-merge network and feed them to Reth.

Includes a CI step to automatically test it

• [x] Generate test vectors
• [x] Nethermind accepts them
• [ ] Reth accepts them

Current issue:

• https://github.com/dapplion/reth_gnosis/issues/10

State root mismatch processing first block

Invalid block error on new payload invalid_hash=0xc0f683b61355455d49af3dbb11fe1f65e9ae8670890d6fb1aadcbf5f8acc960b invalid_number=1 error=mismatched block state root: got 0xf642572d6309b2f2ecad2a6a8b24774beff142d46b525465514feba61f8f601a, expected 0xa59f6ea19d9ee6d7e79bcb286e6d8838b47b48351b37960e24c0a72d41fa1629

[dapplion]

Merging for now to prevent conflicts