Merge pull request #416 from sblauth/dependabot/pip/docutils-0.21.1

Bump docutils from 0.20.1 to 0.21.1

docs/requirements.txt

@@ -5,7 +5,7 @@ Sphinx==7.3.7
 sphinx-argparse==0.4.0
 sphinx-copybutton==0.5.2
 meshio==5.3.5
-docutils==0.20.1
+docutils==0.21.1
 pydata-sphinx-theme==0.15.2
 sphinx-design==0.5.0
 setuptools>=65.5.1 # not directly required, pinned by Snyk to avoid a vulnerability