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

[github-actions]

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

[github-actions]

Pull Request Test Coverage Report for Build 6812663320

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 80.259%

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Totals
Change from base Build 6812461898:	0.0%
Covered Lines:	2537
Relevant Lines:	3161

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💛 - Coveralls

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (bda441b) 80.25% compared to head (ed435e7) 80.25%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #558   +/-   ##
=======================================
  Coverage   80.25%   80.25%           
=======================================
  Files          25       25           
  Lines        3161     3161           
=======================================
  Hits         2537     2537           
  Misses        624      624           

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