CompatHelper: bump compat for Ipopt to 1, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the Ipopt package from 0.6, 0.7, 0.8, 0.9 to 0.6, 0.7, 0.8, 0.9, 1.
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.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 55.94%. Comparing base (7c6afba) to head (31d9fc0).
⚠️ Report is 37 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop      #99      +/-   ##
===========================================
- Coverage    60.22%   55.94%   -4.28%     
===========================================
  Files           10       10              
  Lines          538      538              
===========================================
- Hits           324      301      -23     
- Misses         214      237      +23     

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[vogt31337]

done.