Bump black from 24.2.0 to 24.3.0 in /.github/workflows

Bumps [black](https://github.com/psf/black) from 24.2.0 to 24.3.0.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@24.2.0...24.3.0)

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

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

.github/workflows/constraints.txt

@@ -1,6 +1,6 @@
 pip==24.0
 pre-commit==3.6.2
-black==24.2.0
+black==24.3.0
 flake8==7.0.0
 reorder-python-imports==3.12.0
 pytest==8.0.2