fix(dynamic_avoidance_planner): inherit modified goal (#6179)

Signed-off-by: kosuke55 <kosuke.tnp@gmail.com>

Author: kosuke55

planning/behavior_path_dynamic_avoidance_module/src/scene.cpp

@@ -397,6 +397,7 @@ BehaviorModuleOutput DynamicAvoidanceModule::plan()
     current_drivable_area_info, getPreviousModuleOutput().drivable_area_info);
   output.reference_path = getPreviousModuleOutput().reference_path;
   output.turn_signal_info = getPreviousModuleOutput().turn_signal_info;
+  output.modified_goal = getPreviousModuleOutput().modified_goal;
 
   return output;
 }