CompatHelper: inherit secrets in reusable caller

[mtfishman]

Summary

• add secrets: "inherit" to .github/workflows/CompatHelper.yml
• keep workflow behavior unchanged otherwise

Why

This lets the reusable CompatHelper workflow receive COMPATHELPER_PAT when available, so token-owner detection uses the PAT owner path (ITensorBot) instead of falling back to the GitHub App token path.

Scope

• minimal one-line workflow caller patch
• prep step so repos are in a common state ahead of the broader security-workflow rollout

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.19%. Comparing base (323c1aa) to head (e7b6030).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #36   +/-   ##
=======================================
  Coverage   75.19%   75.19%           
=======================================
  Files           7        7           
  Lines         129      129           
=======================================
  Hits           97       97           
  Misses         32       32           

Flag	Coverage Δ
docs	0.00% <ø> (ø)

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