Bump docutils from 0.21.1 to 0.21.2 in /docs

Bumps [docutils](https://docutils.sourceforge.io) from 0.21.1 to 0.21.2.

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

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

docs/requirements.txt

@@ -6,7 +6,7 @@ babel==2.14.0
 certifi==2024.2.2
 chardet==5.2.0
 commonmark==0.9.1
-docutils==0.21.1
+docutils==0.21.2
 idna==3.7
 imagesize==1.4.1
 pytz==2024.1