fix: SuperchainWETH test flake

[smartcontracts]

Fixes a flake that existed inside of the SuperchainWETH test suite. Was caught by the heavy fuzz test.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 42.72%. Comparing base (72eb311) to head (a101d6f).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #13115      +/-   ##
===========================================
- Coverage    44.46%   42.72%   -1.75%     
===========================================
  Files          798      742      -56     
  Lines        71682    67017    -4665     
===========================================
- Hits         31874    28630    -3244     
+ Misses       37224    35980    -1244     
+ Partials      2584     2407     -177     

Flag	Coverage Δ
cannon-go-tests-32	?
cannon-go-tests-64	?

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see 65 files with indirect coverage changes