Bump docutils from 0.20.1 to 0.21.2

Bumps [docutils](https://docutils.sourceforge.io) from 0.20.1 to 0.21.2.

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

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

requirements.txt

@@ -7,7 +7,7 @@ django-environ==0.11.2
 django-extensions==3.2.3
 djangorestframework==3.15.1
 djangorestframework-camel-case==1.4.2
-docutils==0.20.1
+docutils==0.21.2
 drf-yasg[validation]==1.21.7
 gunicorn[gevent]==23.0.0
 hexbytes==0.3.1