feat: Support Python 3.12; upgrade pynumaflow to 0.7.1

[ab93]

• Upgrade pynumaflow to 0.7.1; resolve breaking changes
• Support Python 3.12
• Upgrade github actions for faster runs

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.54%. Comparing base (c61f59d) to head (b0cb372).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #383      +/-   ##
==========================================
- Coverage   92.54%   92.54%   -0.01%     
==========================================
  Files          98       98              
  Lines        4643     4640       -3     
  Branches      411      411              
==========================================
- Hits         4297     4294       -3     
  Misses        253      253              
  Partials       93       93              

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