Bump types-docutils from 0.20.0.20240406 to 0.21.0.20240423

Bumps [types-docutils](https://github.com/python/typeshed) from 0.20.0.20240406 to 0.21.0.20240423.
- [Commits](https://github.com/python/typeshed/commits)

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

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

requirements-dev.txt

@@ -17,4 +17,4 @@ flake8-requirements==2.1.1
 flake8-simplify==0.21.0
 mypy==1.10.0
 types-colorama==0.4.15.20240311
-types-docutils==0.20.0.20240406
+types-docutils==0.21.0.20240423