build(deps): bump docutils from 0.22.3 to 0.22.4 in /rst

Bumps [docutils](https://github.com/rtfd/recommonmark) from 0.22.3 to 0.22.4.
- [Changelog](https://github.com/readthedocs/recommonmark/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rtfd/recommonmark/commits)

---
updated-dependencies:
- dependency-name: docutils
  dependency-version: 0.22.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

rst/requirements.txt

@@ -1,3 +1,3 @@
-docutils==0.22.3
+docutils==0.22.4
 rstcheck==6.2.5
 rst2pdf==0.103.1