[3.14] Add python version adjustment for frame count changes (pytorch#168190)

``sys.getrefcount(lib)`` got impacted due to python3.13 optimization. ``sys.getrefcount(lib._op_impls)`` and others remain the same.

Test plan:
``python test/test_python_dispatch.py TestPythonRegistration.test_finalizer`` in local ``python=3.14`` env

Pull Request resolved: pytorch#168190
Approved by: https://github.com/williamwen42, https://github.com/azahed98

Author: fxdawnn

test/test_python_dispatch.py

@@ -299,8 +299,12 @@ def test_finalizer(self):
         lib = Library(self.test_ns, "FRAGMENT")  # noqa: TOR901
         lib.define("foo123(Tensor x) -> Tensor")
 
-        # 1 for `lib`, 1 for sys.getrefcount
-        self.assertEqual(sys.getrefcount(lib), 2)
+        # 1 for `lib`, 1 for sys.getrefcount' for previous python version (<=3.12)
+        # In Python 3.13+, sys.getrefcount() was optimized to not create
+        # a temporary reference, so expected counts are 1 less than before
+        expected_refcount = 1 if sys.version_info >= (3, 14) else 2
+        self.assertEqual(sys.getrefcount(lib), expected_refcount)
+
         # We gained an additional reference that gets cleared when the finalizer runs
         self.assertEqual(sys.getrefcount(torch.library._impls), impls_refcnt + 1)
         # 1 for `lib`
@@ -318,15 +322,15 @@ def foo123(x):
         saved_op_impls = lib._op_impls
 
         # del will definitely work if the following passes
-        self.assertEqual(sys.getrefcount(lib), 2)
+        self.assertEqual(sys.getrefcount(lib), expected_refcount)
         del lib
 
         # 1 for saved_op_impls
         # 1 for sys.getrefcount
         # This function should be the last user of lib._op_impls:
         # - lib should not have a reference anymore (it was del'ed)
         # - lib's finalizer should not have a reference anymore
-        self.assertEqual(sys.getrefcount(saved_op_impls), 2)
+        self.assertEqual(sys.getrefcount(saved_op_impls), expected_refcount)
 
         self.assertTrue(key not in torch.library._impls)