Change: update type hints

[NiklasHargarter]

What

Changes type hints used in core modules to Python 3.9 / 3.10. Change types that can be None to optional type. Removes unnecessary defaults of None.

Why

References

Checklist

• Tests

[github-actions]

Conventional Commits Report

Type	Number
Changed	1

🚀 Conventional commits found.

[mbrinkhoff]

Waiting for the internal team to confirm everybody uses Python 3.10 or later

[mbrinkhoff]

Waiting for the internal team to confirm everybody uses Python 3.10 or later

I did not receive any mention that someone is still below python 3.10, so we will go ahead

[codecov]

Codecov Report

Attention: Patch coverage is 78.57143% with 3 lines in your changes missing coverage. Please review.

Project coverage is 79.51%. Comparing base (ae2ad54) to head (4e3a577).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
troubadix/plugin.py	57.14%	3 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #734   +/-   ##
=======================================
  Coverage   79.51%   79.51%           
=======================================
  Files          86       86           
  Lines        2910     2910           
  Branches      626      626           
=======================================
  Hits         2314     2314           
  Misses        450      450           
  Partials      146      146           

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