CompatHelper: bump compat for CodecBzip2 to 0.8, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the CodecBzip2 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 ✅

Comparison is base (8fae385) 87.85% compared to head (ed0223b) 87.85%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #23   +/-   ##
=======================================
  Coverage   87.85%   87.85%           
=======================================
  Files           6        6           
  Lines         313      313           
=======================================
  Hits          275      275           
  Misses         38       38           

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