CompatHelper: bump compat for AbstractDifferentiation to 0.6, (keep existing compat)

[github-actions[bot]]

This pull request changes the compat entry for the AbstractDifferentiation package from 0.4, 0.5 to 0.4, 0.5, 0.6. 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[bot]]

Codecov Report

Merging #23 (6c84f44) into main (1adb569) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##              main       #23   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            7         7           
  Lines          159       159           
=========================================
  Hits           159       159           

:mega: We’re building smart automated test selection to slash your CI/CD build times. Learn more