Block production detailed metrics

[dapplion]

Add more detailed metrics for block production. From https://github.com/ChainSafe/lodestar/issues/2468

Originally inspired in May 2021 from here https://github.com/sigp/lighthouse/blob/stable/beacon_node/beacon_chain/src/metrics.rs

• [ ] beacon_block_production_requests_total: Count of all block production requests
• [ ] beacon_block_production_successes_total: Count of blocks successfully produced
• [ ] beacon_block_production_seconds: Full runtime of block production
• [ ] beacon_block_production_state_load_seconds: Time taken to load the base state for block production
• [ ] beacon_block_production_slot_process_seconds: Time taken to advance the state to the block production slot
• [ ] beacon_block_production_unaggregated_seconds: Time taken to import the naive aggregation pool for block production
• [ ] beacon_block_production_attestation_seconds: Time taken to pack attestations into a block
• [ ] beacon_block_production_process_seconds: Time taken to process the block produced
• [ ] beacon_block_production_state_root_seconds: Time taken to calculate the block's state root
• [ ] beacon_attestation_production_requests_total: Count of all attestation production requests
• [ ] beacon_attestation_production_successes_total: Count of attestations processed without error
• [ ] beacon_attestation_production_seconds: Full runtime of attestation production

[maschad]

Is this still relevant?

[dapplion]

Yes!