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

[github-actions]

This pull request changes the compat entry for the AdvancedHMC package from 0.6 to 0.6, 0.7 for package AdvancedHMC.
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 83.16%. Comparing base (52fef88) to head (ed37578).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #234   +/-   ##
=======================================
  Coverage   83.16%   83.16%           
=======================================
  Files          13       13           
  Lines         588      588           
=======================================
  Hits          489      489           
  Misses         99       99           

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