Bump black from 23.10.1 to 23.11.0 in /back (#1111)

Bumps [black](https://github.com/psf/black) from 23.10.1 to 23.11.0.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@23.10.1...23.11.0)

---
updated-dependencies:
- dependency-name: black
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

back/requirements-dev.txt

@@ -1,4 +1,4 @@
-black==23.10.1
+black==23.11.0
 flake8==6.1.0
 isort==5.12.0
 pre-commit==3.5.0