CompatHelper: bump compat for MatrixAlgebraKit to 0.6, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the MatrixAlgebraKit package from 0.2, 0.3, 0.4, 0.5 to 0.2, 0.3, 0.4, 0.5, 0.6.
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 92.27%. Comparing base (51b5c56) to head (016ee6e).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #93      +/-   ##
==========================================
- Coverage   92.65%   92.27%   -0.38%     
==========================================
  Files          16       16              
  Lines         490      492       +2     
==========================================
  Hits          454      454              
- Misses         36       38       +2     

Flag	Coverage Δ
docs	0.00% <0.00%> (ø)

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