[3.13] gh-124642: Dictionaries aren't marking objects as weakref'd (GH-124643) (#124798)

gh-124642: Dictionaries aren't marking objects as weakref'd (GH-124643)

Dictionaries aren't marking objects as weakref'd
(cherry picked from commit 077e7ef6a0abbf9e04b9aa11b4f621031004c31f)

Co-authored-by: Dino Viehland <dinoviehland@meta.com>