CompatHelper: bump compat for MatrixAlgebraKit to 0.3, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the MatrixAlgebraKit package from 0.2 to 0.2, 0.3.
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 91.16%. Comparing base (0a2af0c) to head (32e1a54).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #76      +/-   ##
==========================================
- Coverage   91.56%   91.16%   -0.41%     
==========================================
  Files          15       15              
  Lines         498      498              
==========================================
- Hits          456      454       -2     
- Misses         42       44       +2     

Flag	Coverage Δ
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