Merge pull request #6369 from godotengine/dependabot/pip/sphinx-rtd-theme-1.1.1

Bump sphinx-rtd-theme from 1.0.0 to 1.1.1

requirements.txt

@@ -4,7 +4,7 @@
 # https://github.com/readthedocs/readthedocs.org/blob/master/requirements/pip.txt
 # https://github.com/readthedocs/readthedocs.org/blob/master/requirements/docs.txt
 sphinx==4.4.0
-sphinx_rtd_theme==1.0.0
+sphinx_rtd_theme==1.1.1
 
 # Code tabs extension for GDScript/C#
 sphinx-tabs==3.3.1