Update GHA Python versions

[lieryan]

Description

Remove 3.8, add 3.12

[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 94.94%. Comparing base (55169bb) to head (10b00a5). :warning: Report is 18 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #805      +/-   ##
==========================================
- Coverage   94.98%   94.94%   -0.05%     
==========================================
  Files         135      135              
  Lines       26480    26486       +6     
==========================================
- Hits        25152    25146       -6     
- Misses       1328     1340      +12     

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