bpo-44184: Apply GH-26274 to the non-GC-type branch of subtype_dealloc (GH-27165) (GH-27174)

The non-GC-type branch of subtype_dealloc is using the type of an object after freeing in the same unsafe way as GH-26274 fixes. (I believe the old news entry covers this change well enough.)

https://bugs.python.org/issue44184
(cherry picked from commit 074e7659f208051b6b973f7fdb654dd22b93aaa2)

Co-authored-by: T. Wouters <thomas@python.org>