Bump docutils from 0.20.1 to 0.21.1 in /it/python

Bumps [docutils](https://docutils.sourceforge.io) from 0.20.1 to 0.21.1.

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

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

it/python/requirements-dev.txt

@@ -10,7 +10,7 @@ colorama==0.4.6 ; sys_platform == 'win32'
 
 dill==0.3.6 ; python_version < '3.11'
 
-docutils==0.20.1 ; python_version >= '3.7'
+docutils==0.21.1 ; python_version >= '3.7'
 
 exceptiongroup==1.1.1 ; python_version < '3.11'