node-api: stop ref gc during environment teardown

A gc may happen during environment teardown. Thus, during finalization
initiated by environment teardown we must remove the V8 finalizer
before calling the Node-API finalizer.

Fixes: https://github.com/nodejs/node/issues/37236
PR-URL: https://github.com/nodejs/node/pull/37616


Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>