pip(deps): update black requirement from ~=22.1 to ~=23.1a1

Updates the requirements on [black](https://github.com/psf/black) to permit the latest version.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](https://github.com/psf/black/commits)

---
updated-dependencies:
- dependency-name: black
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements/DEV_REQUIREMENTS.txt

@@ -1,5 +1,5 @@
 black~=22.1 ; python_version >= '3.7'
-black~=21.4b0 ; python_version == '3.6'
+black~=23.1a1 ; python_version == '3.6'
 coveralls~=3.3
 coverage[toml]~=6.1
 isort~=5.10