op-node: reset back to optimal receipt fetching methods

feat(deploy-config/getting-started): `Clarify TIMESTAMP` is int

op-node: More logging in FindL2Heads

Co-authored-by: Adrian Sutton <adrian@oplabs.co>

Closing: https://linear.app/optimism/issue/DEVRL-791/suggestion-l2outputoraclestartingtimestamp-needs-to-be-an-int-without

op-node/p2p: Fix logging when a peer fails to be blocked or unblocked

op-node: harden eth RPC block/header retrieval by checking parameters

fix(op-node): Peer Scoring Metrics

op-node: generalize and improve alt-sync

batch-submitter: allow deposit only batches

op-node: harden eth RPC block/header retrieval by ensuring results are consistent with the requested IDs

op-proposer: add l2 block height metrics

op-node: reset back to optimal receipt fetching methods, to not fallback permanently to sub-optimal RPC

maint: add Go to dependency list

Adds Go to the list of dependencies in the CONTRIBUTING guide.

chore(ctb): Bump `forge` & `forge-std`

config: set the L2 gaslimit to 30 million in config

contracts: add a method for building legacy bindings