Update actions/setup-python to avoid Node JS deprecations

[PeterJCLaw]

No description provided.

[davidhalter]

Feel free to merge

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.49%. Comparing base (54a6dad) to head (fc511a8).
Report is 8 commits behind head on master.

❗ Current head fc511a8 differs from pull request most recent head 9bad42c

Please upload reports for the commit 9bad42c to get more accurate results.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2005      +/-   ##
==========================================
+ Coverage   94.46%   94.49%   +0.03%     
==========================================
  Files          80       80              
  Lines       11932    11937       +5     
==========================================
+ Hits        11271    11280       +9     
+ Misses        661      657       -4     

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