Merge branch 'bundle' of https://github.com/KumoLiu/MONAI into bundle

tests/testing_data/fl_train_properties.json

@@ -123,4 +123,4 @@
         "id": "validate::key_metric",
         "refer_id": "validate::evaluator::key_val_metric"
     }
-}
+}