CompatHelper: bump compat for XLSX to 0.11, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the XLSX package from 0.10.4 to 0.10.4, 0.11.
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 42.33%. Comparing base (1cebbc8) to head (3e18378).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #36   +/-   ##
=======================================
  Coverage   42.33%   42.33%           
=======================================
  Files         137      137           
  Lines       10265    10265           
=======================================
  Hits         4346     4346           
  Misses       5919     5919           

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