CompatHelper: bump compat for Aqua to 0.8 for package test, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the Aqua package from 0.6.5, 0.7 to 0.6.5, 0.7, 0.8 for package test.
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.

[coveralls]

Pull Request Test Coverage Report for Build 7740058317

• 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 96.544%

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Totals
Change from base Build 6692058531:	0.0%
Covered Lines:	838
Relevant Lines:	868

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💛 - Coveralls

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (7d78e5d) 96.65% compared to head (9346eab) 96.65%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #116   +/-   ##
=======================================
  Coverage   96.65%   96.65%           
=======================================
  Files          11       11           
  Lines         867      867           
=======================================
  Hits          838      838           
  Misses         29       29           

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