[3.13] gh-119588: Update docs to reflect decision to include the change with Python 3.13 and not 3.12. (GH-120043) (#120046)

gh-119588: Update docs to reflect decision to include the change with Python 3.13 and not 3.12. (GH-120043)
(cherry picked from commit 4dcd91ceafce91ec37bb1a9d544e41fc65578994)

Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>