ci: reduce go-tests timeout

[mds1]

Bumped the timeout when debugging #17061 but it's not actually needed

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 45.38%. Comparing base (a4d51f0) to head (f01042f).
⚠️ Report is 2 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #17126      +/-   ##
===========================================
- Coverage    45.75%   45.38%   -0.38%     
===========================================
  Files         1478     1478              
  Lines       120100   120100              
===========================================
- Hits         54954    54507     -447     
- Misses       61301    61762     +461     
+ Partials      3845     3831      -14     

Flag	Coverage Δ
cannon-go-tests-64	65.99% <ø> (ø)
contracts-bedrock-tests	96.28% <ø> (ø)

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see 15 files with indirect coverage changes

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