pkg: support 3.14.0

[eliegoudout]

• Minor (updated) ruff fixes
• Use 3.14 in CI

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (c5533ce) to head (1905cad).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #42   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            9         9           
  Lines         1057      1049    -8     
=========================================
- Hits          1057      1049    -8     

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