Bump black from 22.12.0 to 23.9.1

Bumps [black](https://github.com/psf/black) from 22.12.0 to 23.9.1.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@22.12.0...23.9.1)

---
updated-dependencies:
- dependency-name: black
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pyproject.toml

@@ -59,7 +59,7 @@ Homepage = "https://eadwincode.github.io/ellar/"
 test = [
     "pytest >= 6.2.4,<8.0.0",
     "pytest-cov >= 2.12.0,<5.0.0",
-    "black ==22.12.0",
+    "black ==23.9.1",
     "mypy == 1.5.1",
     "ruff ==0.0.275",
     "pytest-asyncio",