CompatHelper: add new compat entry for ChainRulesCore at version 1 for package docs, (keep existing compat)

[github-actions]

This pull request sets the compat entry for the ChainRulesCore package to 1 for package docs.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.
Note: Consider registering a new release of your package immediately after merging this PR, as downstream packages may depend on this for tests to pass.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.46%. Comparing base (d42e8ef) to head (8ad0198).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #694   +/-   ##
=======================================
  Coverage   93.46%   93.46%           
=======================================
  Files          14       14           
  Lines         994      994           
=======================================
  Hits          929      929           
  Misses         65       65           

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