fix(ci): update macOS version in CI workflows to 14

[bhimrazy]

What does this PR do?

Update macOS version in CI workflows to 14

ref: https://github.blog/changelog/2025-09-19-github-actions-macos-13-runner-image-is-closing-down/
runner images: https://github.com/actions/runner-images

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84%. Comparing base (eb33b75) to head (380e2b9).

Additional details and impacted files

@@         Coverage Diff         @@
##           main   #141   +/-   ##
===================================
- Coverage    85%    84%   -1%     
===================================
  Files        12     12           
  Lines       513    512    -1     
===================================
- Hits        435    431    -4     
- Misses       78     81    +3     

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