Fix deprecation warnings

Signed-off-by: Ivan Kanakarakis <[email protected]>

tests/util.py

@@ -469,7 +469,7 @@ def handle_response(self, context):
         auth_info = AuthenticationInformation("test", str(datetime.now()), "test_issuer")
         internal_resp = InternalData(auth_info=auth_info)
         internal_resp.attributes = context.request
-        internal_resp.user_id = "test_user"
+        internal_resp.subject_id = "test_user"
         return self.auth_callback_func(context, internal_resp)