[Fixes #12458] black fails on python3.10 constructs

[mattiagiupponi]

ref #12458

Checklist

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 64.15%. Comparing base (2e4dae2) to head (bc80a08).
Report is 18 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #12461      +/-   ##
==========================================
- Coverage   64.16%   64.15%   -0.01%     
==========================================
  Files         888      888              
  Lines       53465    53465              
  Branches     6596     6596              
==========================================
- Hits        34304    34302       -2     
- Misses      17651    17654       +3     
+ Partials     1510     1509       -1