fix codegen by using newer scripts

[dprotaso]

No description provided.

[dprotaso]

/assign @skonto

Note: this is targeting main branch

[knative-prow]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1042   +/-   ##
=======================================
  Coverage        ?   93.14%           
=======================================
  Files           ?       36           
  Lines           ?     1255           
  Branches        ?        0           
=======================================
  Hits            ?     1169           
  Misses          ?       72           
  Partials        ?       14           

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