chore(deps): update python docker tag to v3.14

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
python	final	minor	3.11-slim -> 3.14-slim
python	stage	minor	3.11 -> 3.14

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.73%. Comparing base (c623987) to head (a9b77b2).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1229   +/-   ##
=======================================
  Coverage   94.73%   94.73%           
=======================================
  Files          41       41           
  Lines        2638     2638           
=======================================
  Hits         2499     2499           
  Misses        139      139           

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