Bump docutils from 0.19 to 0.20 (#555)

Bumps [docutils](https://docutils.sourceforge.io/) from 0.19 to 0.20.

---
updated-dependencies:
- dependency-name: docutils
  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>

Author: dependabot[bot]

requirements-dev.txt

@@ -1,6 +1,6 @@
 -r requirements.txt
 
-docutils==0.19
+docutils==0.20
 flake8==6.0.0
 mypy==1.3.0
 Sphinx==7.0.1