Tracking: Update Beacon API to Electra

[saolyn]

Update Beacon API to Electra

These are the endpoints that we need to ensure are updated to Electra.

Missing Endpoints

• /eth/v2/beacon/blocks/{block_id}/attestations
• /eth/v2/beacon/pool/attester_slashings GET
• /eth/v2/beacon/pool/attester_slashings POST
• /eth/v2/validator/aggregate_attestation
• /eth/v2/validator/aggregate_and_proofs
• /eth/v2/beacon/pool/attestations GET
• /eth/v2/beacon/pool/attestations POST
• /eth/v2/events

Endpoints to check

• /eth/v1/beacon/blinded_blocks
• /eth/v2/beacon/blinded_blocks
• /eth/v1/beacon/blocks
• /eth/v2/beacon/blocks
• /eth/v2/beacon/blocks/{block_id}
• /eth/v1/beacon/blob_sidecars/{block_id}
• /eth/v1/beacon/blinded_blocks/{block_id}
• /eth/v2/debug/beacon/states/{state_id}
• /eth/v3/validator/blocks/{slot}

This issue should be closed after all of the above tasks are complete.

[james-prysm]

discussion from discord says we probably don't want to have a v2 of events, instead update the first version. still up for debate on the following

either have a new versioned event for the attestation and attester_slashing, or leave it up to the consumer to figure it out based on slot of the object(as suggested by... lion... i think)
Are people wanting a versioned event for these 2, or do we let people figure it out from the slot?

[james-prysm]

We also need to update the validator client to use these endpoints otherwise running the vc in rest mode will fail