pythongh-111178: Fix PyRangeIter_Type deallocator

Don't use PyObject_Free() as tp_dealloc to avoid an undefined
behavior. Instead, use the default deallocator which just calls
tp_free which is PyObject_Free().

Author: vstinner

Objects/rangeobject.c

@@ -910,7 +910,7 @@ PyTypeObject PyRangeIter_Type = {
         sizeof(_PyRangeIterObject),             /* tp_basicsize */
         0,                                      /* tp_itemsize */
         /* methods */
-        (destructor)PyObject_Free,              /* tp_dealloc */
+        0,                                      /* tp_dealloc */
         0,                                      /* tp_vectorcall_offset */
         0,                                      /* tp_getattr */
         0,                                      /* tp_setattr */