build(deps): update docutils requirement in /requirements

---
updated-dependencies:
- dependency-name: docutils
  dependency-version: '0.22'
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements/docs.txt

@@ -3,7 +3,7 @@ myst-parser >=0.18.1, <4.0.0
 nbsphinx >=0.8.5, <=0.9.7
 nbconvert >7.14, <7.17
 pandoc >=1.0, <=2.4
-docutils>=0.18.1,<=0.19
+docutils>=0.18.1,<=0.22
 sphinxcontrib-fulltoc >=1.0, <=1.2.0
 sphinxcontrib-mockautodoc
 sphinx-autobuild