build(deps-dev): bump black from 23.12.1 to 24.1.1

Bumps [black](https://github.com/psf/black) from 23.12.1 to 24.1.1.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@23.12.1...24.1.1)

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

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

Author: dependabot[bot]

dev-requirements.txt

@@ -8,7 +8,7 @@ attrs==23.2.0
     # via
     #   flake8-annotations
     #   flake8-bugbear
-black==23.12.1
+black==24.1.1
     # via offlinemsmtp (pyproject.toml)
 build==1.0.3
     # via pip-tools