chore(ci): codegen check

[crenshaw-dev]

• Add checks for codegen
• Checkout before setup go so go.mod is present; remove redundant config, go.mod in root is the default

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 55.23%. Comparing base (dbcc449) to head (ee5c702).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #89      +/-   ##
==========================================
- Coverage   55.32%   55.23%   -0.09%     
==========================================
  Files          10       10              
  Lines        1146     1146              
==========================================
- Hits          634      633       -1     
+ Misses        437      435       -2     
- Partials       75       78       +3     

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