MTN better split the linting process from the CI/CD workflow

[tomMoral]

• Separate workflow for the linting.
• Move pyright in dedicated process to avoid failing the test on type checks.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.94%. Comparing base (1b268b8) to head (46dd175).
Report is 1 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1164       +/-   ##
===========================================
- Coverage   83.08%   72.94%   -10.14%     
===========================================
  Files          92       93        +1     
  Lines        7259     7371      +112     
===========================================
- Hits         6031     5377      -654     
- Misses       1228     1994      +766     

Flag	Coverage Δ
unittests	72.94% <ø> (-10.14%)	⬇️

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see 23 files with indirect coverage changes

[tomMoral]

This is part of the changes that were proposed in #1008 .
For the failure, I think it is something that is already on the main branch no?

[janfb]

Great, this makes sense, thanks! I added one question.

Yes, pyright is failing atm, see #1162 . Probably due to a pyright update? But certainly unrelated to this branch.