go.mod: update op-geth to include post-validation hook interop test fix

[protolambda]

Update op-geth dependency to include ethereum-optimism/op-geth#437

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.77%. Comparing base (2bbfd5d) to head (64cd480).
Report is 3 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff              @@
##           develop   #13132       +/-   ##
============================================
+ Coverage    44.40%   66.77%   +22.36%     
============================================
  Files          799       56      -743     
  Lines        71845     4665    -67180     
============================================
- Hits         31905     3115    -28790     
+ Misses       37341     1378    -35963     
+ Partials      2599      172     -2427     

Flag	Coverage Δ
cannon-go-tests-32	61.85% <ø> (ø)
cannon-go-tests-64	56.72% <ø> (ø)

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see 743 files with indirect coverage changes