CompatHelper: bump compat for Aqua in [extras] to 0.8, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the Aqua package from 0.5 to 0.5, 0.8.
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 91.54%. Comparing base (73518ce) to head (e5e0b45).

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #1033       +/-   ##
===========================================
+ Coverage   19.84%   91.54%   +71.69%     
===========================================
  Files          42       42               
  Lines        5497     5559       +62     
===========================================
+ Hits         1091     5089     +3998     
+ Misses       4406      470     -3936     

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