Consider integration of PyObject_GC_UnTrack() with the trashcan C API

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2021-08-10.21:07:59.473>
labels = ['type-feature']
title = 'Consider integration of PyObject_GC_UnTrack() with the trashcan C API'
updated_at = <Date 2021-08-16.21:40:17.744>
user = 'https://github.com/nascheme'

bugs.python.org fields:

activity = <Date 2021-08-16.21:40:17.744>
actor = 'nascheme'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = []
creation = <Date 2021-08-10.21:07:59.473>
creator = 'nascheme'
dependencies = []
files = []
hgrepos = []
issue_num = 44881
keywords = ['patch']
message_count = 15.0
messages = ['399356', '399358', '399359', '399360', '399367', '399377', '399378', '399379', '399426', '399434', '399437', '399495', '399519', '399548', '399686']
nosy_count = 4.0
nosy_names = ['tim.peters', 'nascheme', 'vstinner', 'pablogsal']
pr_nums = ['27718']
priority = 'normal'
resolution = None
stage = 'needs patch'
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue44881'
versions = []