chore: fix gen check

[zhaohuabing]

fix https://github.com/envoyproxy/gateway/actions/runs/12268094500/job/34229337374

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.28%. Comparing base (0898544) to head (a525968).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4888      +/-   ##
==========================================
- Coverage   66.31%   66.28%   -0.03%     
==========================================
  Files         209      209              
  Lines       31955    31922      -33     
==========================================
- Hits        21190    21161      -29     
+ Misses       9518     9515       -3     
+ Partials     1247     1246       -1     

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