fix: make codegen permissions

[dudo]

Fixes #21623

Checklist:

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 55.63%. Comparing base (fa747f9) to head (1793e23).
Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #21667      +/-   ##
==========================================
- Coverage   55.67%   55.63%   -0.05%     
==========================================
  Files         339      339              
  Lines       56814    56814              
==========================================
- Hits        31634    31611      -23     
- Misses      22535    22548      +13     
- Partials     2645     2655      +10     

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[rumstead]

LGTM!