Bump black from 20.8b1 to 24.3.0

Bumps [black](https://github.com/psf/black) from 20.8b1 to 24.3.0.
- [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/24.3.0)

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

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

requirements-dev.txt

@@ -2,7 +2,7 @@ appdirs==1.4.3
 aspy.refactor-imports==2.1.1
 atomicwrites==1.3.0
 attrs==20.3.0
-black==20.8b1
+black==24.3.0
 cached-property==1.5.1
 click==7.1.2
 coverage==4.5.4