feat: support python 3.14

[zhongjiajie]

Brief Summary of The Change

Pull Request checklist

I confirm that the following checklist has been completed.

• Add/Change test cases for the changes.
• Add/Change the related documentation, should also change docs/source/config.rst when you change file default_config.yaml.
• (Optional) Add your change to UPDATING.md when it is an incompatible change.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.59%. Comparing base (99d3ef5) to head (b19b1ec).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #171   +/-   ##
=======================================
  Coverage   90.59%   90.59%           
=======================================
  Files          61       61           
  Lines        2308     2308           
=======================================
  Hits         2091     2091           
  Misses        217      217           

Flag	Coverage Δ
unittests	90.59% <ø> (ø)

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