pythonGH-136155: Use sphinxext-opengraph v0.11.0 (python#137348)

Author: AA-Turner

Doc/requirements.txt

@@ -11,7 +11,7 @@ sphinx~=8.2.0
 
 blurb
 
-sphinxext-opengraph~=0.9.0
+sphinxext-opengraph~=0.11.0
 sphinx-notfound-page~=1.0.0
 
 # The theme used by the documentation is stored separately, so we need