feat(watcher&rollup): add block commit calldata size and commit/finalize batch revert metrics

[colinlyguo]

Purpose or design rationale of this PR

This PR adds:

1. A block commit calldata size metric in l2-watcher.
2. Commit/finalize batch revert metrics in rollup-relayer.

PR title

Your PR title must follow conventional commits (as we are doing squash merge for each PR), so it must start with one of the following types:

• feat: A new feature

Deployment tag versioning

Has tag in common/version.go been updated or have you added bump-version label to this PR?

• No, this PR doesn't involve a new deployment, git tag, docker image tag
• Yes

Breaking change label

Does this PR have the breaking-change label?

• No, this PR is not a breaking change
• Yes

[codecov]

Codecov Report

Merging #974 (e60f31a) into develop (47e5a43) will increase coverage by 0.08%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop     #974      +/-   ##
===========================================
+ Coverage    48.10%   48.18%   +0.08%     
===========================================
  Files          100      100              
  Lines        10562    10579      +17     
===========================================
+ Hits          5081     5098      +17     
  Misses        5060     5060              
  Partials       421      421              

Flag	Coverage Δ
rollup	66.54% <100.00%> (+0.18%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
rollup/internal/controller/relayer/l2_relayer.go	41.56% <100.00%> (+0.24%)	⬆️
.../internal/controller/relayer/l2_relayer_metrics.go	100.00% <100.00%> (ø)
rollup/internal/controller/watcher/l2_watcher.go	70.04% <100.00%> (+0.41%)	⬆️
.../internal/controller/watcher/l2_watcher_metrics.go	100.00% <100.00%> (ø)