[3.14] gh-145701: Fix `__classdict__` & `__conditional_annotations__` in class-scope inlined comprehensions (GH-145702) (#145710)

(cherry picked from commit 63eaaf95999c530cbd75b3addc3e660499d3adbe)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>

* Add `:oss-fuzz:` supports

Backports part of https://github.com/python/cpython/commit/255e79fa955ac5ffef9eb27087e8b1373e98e3bd.

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>