Set weights_only to False for xser.load (#8259)

Co-authored-by: root <root@t1v-n-a83b02ef-w-0.us-central2-b.c.tpu-pytorch.internal>

torch_xla/utils/serialization.py

@@ -84,7 +84,7 @@ def load(path):
   Returns:
     The loaded data.
   """
-  ref_data = torch.load(path)
+  ref_data = torch.load(path, weights_only=False)
   tensor_folder = _get_tensors_folder(path)
 
   def convert_fn(tensors):