fix(tags): import Self from typing for Python 3.11+

[noirbizarre]

Description

typing-extensions is not installed for Python 3.11+, so fix the import properly.

Note

CI was not failing as typing-extensions is a transitive dependency of multiple test/lint dependencies but is missing as soon as commitizen is installed alone.

Checklist

• Add test cases to all the changes you introduce
• Run poetry all locally to ensure this change passes linter check and test
• Test the changes on the local machine manually
• Update the documentation for the changes

Expected behavior

commitizen import/run does not fail on Selfgit s

Additional context

I might merge this PR without review as soon as the CI pass as the latest release is broken for Python 3.11+

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.69%. Comparing base (120d514) to head (db97e60).
Report is 573 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1365      +/-   ##
==========================================
+ Coverage   97.33%   97.69%   +0.35%     
==========================================
  Files          42       57      +15     
  Lines        2104     2648     +544     
==========================================
+ Hits         2048     2587     +539     
- Misses         56       61       +5     

Flag	Coverage Δ
unittests	97.69% <100.00%> (+0.35%)	⬆️

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[noirbizarre]

Duplicate #1364