Port to 3.13

Author: sobolevn

Objects/typeobject.c

@@ -996,9 +996,15 @@ type_modified_unlocked(PyTypeObject *type)
        We don't assign new version tags eagerly, but only as
        needed.
      */
+#ifdef Py_GIL_DISABLED
     if (_Py_atomic_load_uint_relaxed(type->tp_version_tag) == 0) {
         return;
     }
+#else
+    if (type->tp_version_tag == 0) {
+        return;
+    }
+#endif
     // Cannot modify static builtin types.
     assert((type->tp_flags & _Py_TPFLAGS_STATIC_BUILTIN) == 0);