Use faster version of black

[Czaki]

Description

Use black compiled with mypyc instead of pure python version to get it faster

References

psf/black#3405

Type of change

• Maintenance (changes required to run napari, tests, & CI smoothly)

[codecov]

Codecov Report

Merging #6133 (66f1517) into main (4ba0e6a) will decrease coverage by 0.03%.
Report is 3 commits behind head on main.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #6133      +/-   ##
==========================================
- Coverage   91.62%   91.60%   -0.03%     
==========================================
  Files         579      579              
  Lines       50663    50701      +38     
==========================================
+ Hits        46419    46443      +24     
- Misses       4244     4258      +14     

see 2 files with indirect coverage changes

[Czaki]

@Carreau looks like #6086 is not working. I intentionally left a comment in this PR description, which was not removed.