Update to sphinx 5.2

[antonio-rojas]

New changes in sphinx requires new attributes to be defined. Supporting this change introduces non fatal error and warnings when building with older version of sphinx.

Therefore we think it is time to upgrade sphinx in sage.

The ticket update

• sphinx to 5.2.3
• sphinxcontrib_websupport to 1.2.4 (no other sphinxcontrib package seem out of date)
• imagesize to 1.4.1 (required dependency)

CC: @kiwifb

Component: build

Author: Antonio Rojas, François Bissey

Branch: 8f8af65

Reviewer: Kwankyu Lee

Issue created by migration from https://trac.sagemath.org/ticket/34615

[antonio-rojas]

Branch: u/arojas/fix_build_with_sphinx_5_2

[sagetrac-git]

Commit: c2e610c

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

c2e610c

Fix build with sphinx 5.2

[antonio-rojas]

Description changed:

--- 
+++ 
@@ -1 +1 @@
-
+Still works with older sphinx (surprisingly)

[antonio-rojas]

Author: Antonio Rojas

[kiwifb]

comment:4

I haven't been pushed to 5.2 yet, so I haven't seen it. Although I could have had reports. This is quite different from the previous fix we pushed. Was it supposed to be implicit in older version of sphinx.

[antonio-rojas]

comment:5

No, this is a new attribute in 5.2. That's why I was surprised this still works with older sphinx

sphinx-doc/sphinx@7da60f2

[antonio-rojas]

comment:6

Ah, no. It does throw errors with older sphinx, although docs still seem to build fine.