CompatHelper: bump compat for DSP to 0.8, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the DSP package from 0.7 to 0.7, 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 66.66%. Comparing base (a6b407b) to head (0f5b8fa).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #73   +/-   ##
=======================================
  Coverage   66.66%   66.66%           
=======================================
  Files          20       20           
  Lines         705      705           
=======================================
  Hits          470      470           
  Misses        235      235           

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