Update Black

[jwodder]

This PR updates the version of Black used by the pre-commit hook and reformats the code with the new version.

[codecov]

Codecov Report

Merging #426 (1184775) into master (41000ee) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #426   +/-   ##
=======================================
  Coverage   82.26%   82.26%           
=======================================
  Files          55       55           
  Lines        5672     5672           
=======================================
  Hits         4666     4666           
  Misses       1006     1006           

Flag	Coverage Δ
unittests	82.26% <100.00%> (ø)

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Impacted Files	Coverage Δ
dandi/__init__.py	72.72% <ø> (ø)
dandi/cli/base.py	77.35% <ø> (ø)
dandi/cli/cmd_ls.py	62.09% <ø> (ø)
dandi/download.py	85.62% <ø> (ø)
dandi/girder.py	84.26% <ø> (ø)
dandi/models.py	85.87% <ø> (ø)
dandi/organize.py	92.30% <ø> (ø)
dandi/pynwb_utils.py	85.18% <ø> (ø)
dandi/support/digests.py	100.00% <ø> (ø)
dandi/support/iterators.py	100.00% <ø> (ø)
... and 7 more

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