Update black action

[dfremont]

Updates to the latest release of the GitHub Action for black.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.85%. Comparing base (454c8e1) to head (64a95d5).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #480      +/-   ##
==========================================
- Coverage   89.87%   89.85%   -0.03%     
==========================================
  Files          48       48              
  Lines       13346    13346              
==========================================
- Hits        11995    11992       -3     
- Misses       1351     1354       +3     

see 4 files with indirect coverage changes

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