Doc: Update Py_TPFLAGS_HAVE_FINALIZE in docs (GH-96273)

It is now deprecated and the docs should reflect that.
(cherry picked from commit 9625de6fab4597bcd04ec390b680b053b0533816)

Co-authored-by: da-woods <dw-git@d-woods.co.uk>

Miss Islington (bot) committed 3y ago

53a344ef8099f131934d9d5032e8a1cd605cf963

Parent: 1901ee7

Committed by GitHub <noreply@github.com> on 8/30/2022, 8:38:40 AM