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