gh-113750: Fix object resurrection in free-threaded builds (gh-113751)

gh-113750: Fix object resurrection on free-threaded builds

This avoids the undesired re-initializing of fields like `ob_gc_bits`,
`ob_mutex`, and `ob_tid` when an object is resurrected due to its
finalizer being called.

This change has no effect on the default (with GIL) build.