CI: Extend smoke tests with py313

[SMoraisAnsys]

Description

Extend CI to perform smoke tests with python 3.13. Includes also documentation changes and classifier.

Issue linked

Related to #5524

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate tests (unit, integration, system).
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved by the PR if any.
• I have agreed with the Contributor License Agreement (CLA).

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.74%. Comparing base (7c82857) to head (d0553d8).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6116   +/-   ##
=======================================
  Coverage   85.74%   85.74%           
=======================================
  Files         167      167           
  Lines       63348    63348           
=======================================
  Hits        54318    54318           
  Misses       9030     9030           

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[MaxJPRey]

LGTM.