Test Python 3.13 support

[dolfinus]

Change Summary

Update Python in CI from 3.12 to 3.13.

Related issue number

Checklist

• Commit message and PR title is comprehensive
• Keep the change as small as possible
• Unit and integration tests for the changes exist
• Tests pass on CI and coverage does not decrease
• Documentation reflects the changes where applicable
• docs/changelog/next_release/<pull request or issue id>.<change type>.rst file added describing change
  (see CONTRIBUTING.rst for details.)
• My PR is ready to review.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.08%. Comparing base (bc8c585) to head (a945700).
Report is 3 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop      #98   +/-   ##
========================================
  Coverage    92.08%   92.08%           
========================================
  Files          153      153           
  Lines         3248     3248           
  Branches       225      225           
========================================
  Hits          2991     2991           
  Misses         199      199           
  Partials        58       58           

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