doc: fix broken Sphinx by updating to Sphinx 5.0.2 #69654
Merged
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Sphinx 4.x is way past EOL and due to it not pinning its dependencies, it's effectively broken.
See sphinx-doc/sphinx#11890
The recommended fix, although not ideal in the context of an LTS branch, is to update to Sphinx 5.0.2, which should have minimal impact of how the rendered documentation looks.
Fixes #69656.