Docs: Upgrade Sphinx to 7.4 (#121987)

Author: AA-Turner

Doc/requirements.txt

@@ -6,12 +6,12 @@
 # Sphinx version is pinned so that new versions that introduce new warnings
 # won't suddenly cause build failures. Updating the version is fine as long
 # as no warnings are raised by doing so.
-sphinx~=7.3.0
+sphinx~=7.4.0
 
 blurb
 
-sphinxext-opengraph==0.7.5
-sphinx-notfound-page==1.0.0
+sphinxext-opengraph~=0.9.0
+sphinx-notfound-page~=1.0.0
 
 # The theme used by the documentation is stored separately, so we need
 # to install that as well.