another test fix

Author: Ilija Vukotic

tests/servicex_did_finder_lib/test_communication.py

@@ -183,7 +183,7 @@ async def my_callback(did_name: str, info: Dict[str, Any]):
     assert seen_name == 'hithere'
 
     # Make sure the file was sent along, along with the completion
-    SXAdaptor.put_file_add.assert_called_once()
+    SXAdaptor.put_file_add_bulk.assert_called_once()
     SXAdaptor.put_fileset_complete.assert_called_once()