Add missed for_group_by_source_node arg

metricflow/dataflow/builder/dataflow_plan_builder.py

@@ -503,6 +503,7 @@ def _build_derived_metric_output_node(
                     ),
                     filter_spec_factory=filter_spec_factory,
                     time_range_constraint=time_range_constraint if not metric_spec.has_time_offset else None,
+                    for_group_by_source_node=for_group_by_source_node,
                 )
             )