ci: Using a dynamically generated matrix for testing job setup

[germa89]

Description

The matrix for unit testing is getting very complicated.
I am going to off-load it to a shell file.

Issue linked

NA

Checklist

• I have visited and read Develop PyMAPDL.
• I have tested my changes locally
• I have added necessary documentation or updated existing documentation.
• I have followed the PyMAPDL coding style guidelines.
• I have added appropriate unit tests that also ensure the minimal coverage criteria.
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved to the PR if any.
• I have assigned this PR to myself.
• I have marked this PR as draft if it is not ready to be reviewed yet.
• I have made sure that the title of my PR follows Commit naming conventions (e.g. feat: adding new MAPDL command)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.20%. Comparing base (587a0cb) to head (283916f).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3232      +/-   ##
==========================================
- Coverage   82.67%   80.20%   -2.47%     
==========================================
  Files          53       53              
  Lines        9625     9625              
==========================================
- Hits         7957     7720     -237     
- Misses       1668     1905     +237     

[germa89]

References:

• https://stackoverflow.com/questions/59977364/github-actions-how-use-strategy-matrix-with-script
• https://github.com/marketplace/actions/is-organization-member

Stack Overflow

Github Actions: How use strategy/matrix with script

I have workflow that needs to have a loop for the steps, which is perfect with strategy/matrix.

The only problem is that strategy/matrix needs to be set by a constant.

Is it possible to use strat...

GitHub

Is Organization Member - GitHub Marketplace

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[clatapie]

LGTM!