chore(deps): pin black to ^23.7.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
black (changelog)	^23.3.0 -> ^23.7.0

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Release Notes

psf/black (black)

v23.7.0

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Highlights

• Runtime support for Python 3.7 has been removed. Formatting 3.7 code will still be
  supported until further notice (#​3765)

Stable style

• Fix a bug where an illegal trailing comma was added to return type annotations using
  PEP 604 unions (#​3735)
• Fix several bugs and crashes where comments in stub files were removed or mishandled
  under some circumstances (#​3745)
• Fix a crash with multi-line magic comments like type: ignore within parentheses
  (#​3740)
• Fix error in AST validation when Black removes trailing whitespace in a type comment
  (#​3773)

Preview style

• Implicitly concatenated strings used as function args are no longer wrapped inside
  parentheses (#​3640)
• Remove blank lines between a class definition and its docstring (#​3692)

Configuration

• The --workers argument to Black can now be specified via the BLACK_NUM_WORKERS
  environment variable (#​3743)
• .pytest_cache, .ruff_cache and .vscode are now excluded by default (#​3691)
• Fix Black not honouring pyproject.toml settings when running --stdin-filename
  and the pyproject.toml found isn't in the current working directory (#​3719)
• Black will now error if exclude and extend-exclude have invalid data types in
  pyproject.toml, instead of silently doing the wrong thing (#​3764)

Packaging

• Upgrade mypyc from 0.991 to 1.3 (#​3697)
• Remove patching of Click that mitigated errors on Python 3.6 with LANG=C (#​3768)

Parser

• Add support for the new PEP 695 syntax in Python 3.12 (#​3703)

Performance

• Speed up Black significantly when the cache is full (#​3751)
• Avoid importing IPython in a case where we wouldn't need it (#​3748)

Output

• Use aware UTC datetimes internally, avoids deprecation warning on Python 3.12 (#​3728)
• Change verbose logging to exactly mirror Black's logic for source discovery (#​3749)

Blackd

• The blackd argument parser now shows the default values for options in their help
  text (#​3712)

Integrations

• Black is now tested with
  PYTHONWARNDEFAULTENCODING = 1
  (#​3763)
• Update GitHub Action to display black output in the job summary (#​3688)

Documentation

• Add a CITATION.cff file to the root of the repository, containing metadata on how to
  cite this software (#​3723)
• Update the classes and exceptions documentation in Developer reference to match
  the latest code base (#​3755)

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