[3.12] gh-101100: Fix Sphinx warnings in `whatsnew/2.7.rst` and related (GH-115319)#115330

hugovk merged 1 commit intopython:3.12python/cpython:3.12from

hugovk:backport-92483b2-3.12hugovk/cpython:backport-92483b2-3.12Copy head branch name to clipboard