op-chain-ops: Canyon checker script

[trianglesphere]

Description

This tests the following features of Canyon

1. The receipt hash change
2. The 1559 Parameter change (note: if the basefee is too low this check may not properly report)
3. Check for withdrawals (to indicate Shapella has activated)
4. Check for the create2Deployer code hash

One change to eth.BlockInfo to expose the gas limit. TBH I could actually remove it b/c I also dial ethclient in addition to sources.L1Client.

Tests

Manually tested against the devnet.

Metadata

• Fixes Testing Plan for Canyon Network Upgrade #7731

[ajsutton]

LGTM, just worth clarifying the l1 vs l2 naming.

[semgrep-app]

Semgrep found 1 nil-check-after-call finding:

• op-node/p2p/node.go: L74-167

Potential p2pmetrics nil dereference when NewBandwidthCounter is called

_{Ignore this finding from nil-check-after-call.}

Semgrep found 2 todos_require_linear findings:

• op-node/rollup/derive/channel_out.go: L83, L70

Please create a GitHub ticket for this TODO.

_{Ignore this finding from todos_require_linear.}