GH-116946: Eliminate the need for the GC in the _thread.lock and _thread.RLock

[sergey-miryanov]

From #116946 (comment):

There are a number of heap types which are currently unnecessary gc types like _thread.lock, it would be nice to remove that as it would reduce memory usage and reduce pressure on gc, in case anyone wants to work on it.

• Issue: Heap types implemented in C must have Py_TPFLAGS_HAVE_GC and implement tp_traverse #116946

[sergey-miryanov]

@kumaraditya303 Could you please take a look?

[sergey-miryanov]

Thanks!

[bedevere-bot]

🤖 New build scheduled with the buildbot fleet by @efimov-mikhail for commit fb0dc6f 🤖

Results will be shown at:

https://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F141268%2Fmerge

If you want to schedule another build, you need to add the 🔨 test-with-buildbots label again.

[efimov-mikhail]

Oh, it seems that 🔨 test-with-buildbots label can't make something useful after PR have been merged.
Probably, that's okay.