Various reference leaks in the core

[JelleZijlstra]

Bug report

Bug description:

I found a handful of reference leaks in the core using Codex. PR incoming.

CPython versions tested on:

CPython main branch

Operating systems tested on:

macOS

Linked PRs

• gh-145376: Fix various reference leaks #145377
• gh-145376: Fix various reference leaks objects and modules #145385
• gh-145376: Fix reference leaks in _collectionsmodule.c #145421
• gh-145376: Fix null pointer deref in md5module.c #145422
• gh-145376: Avoid reference leaks in failure path of _functoolsmodule.c method partial_new #145423
• gh-145376: Fix refleak in unusual error path in BaseExceptionGroup_new #145474
• gh-145376: Fix refleak and null pointer deref in unusual error path of datetime module #145476
• gh-145376: Fix refleak in error path of time_tzset #145477
• gh-145376: Fix reference leak in _lprof.c #145539
• gh-145376: Fix refleak in _queuemodule.c out-of-memory path #145543
• gh-145376: Fix various refleaks Objects/ #145609
• [3.14] gh-145376: Fix crashes in md5module.c and hmacmodule.c (GH-145422) #145610
• [3.13] gh-145376: Fix crashes in md5module.c (GH-145422) #145611
• [3.13] gh-145376: Fix refleak in queuemodule.c out-of-memory path (GH-145543) #145621
• [3.14] gh-145376: Fix refleak in queuemodule.c out-of-memory path (GH-145543) #145622
• gh-145376: Fix refleaks and double decref for code in Python/ #145666
• gh-145376: Fix _cursesmodule.c build on FreeBSD/macOS #145669
• gh-145376: Fix refleak bug and pointer type bug in Parser/ #145684
• [3.14] gh-145376: Fix various reference leaks (GH-145377) #145712
• gh-145376: Fix GC tracking in structseq.__replace__ #145820
• [3.14] gh-145376: Fix GC tracking in structseq.__replace__ (GH-145820) #145922
• [3.13] gh-145376: Fix GC tracking in structseq.__replace__ (GH-145820) #145924
• [3.13] gh-145376: Fix various reference leaks (GH-145377) #148661