CompatHelper: bump compat for DifferentiationInterface to 0.7 for package docs, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the DifferentiationInterface package from 0.6 to 0.6, 0.7 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.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.69%. Comparing base (ad23cb4) to head (6b133d5).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #76   +/-   ##
=======================================
  Coverage   95.69%   95.69%           
=======================================
  Files          13       13           
  Lines         395      395           
=======================================
  Hits          378      378           
  Misses         17       17           

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