fix(obstacle_cruise_planner): guarantee the stop margin (#1076)

Signed-off-by: satoshi-ota <satoshi.ota928@gmail.com>

Author: satoshi-ota

autoware_launch/config/planning/scenario_planning/lane_driving/motion_planning/obstacle_cruise_planner/obstacle_cruise_planner.param.yaml

@@ -26,7 +26,7 @@
         enable_approaching: false
         additional_safe_distance_margin: 3.0 # [m]
         min_safe_distance_margin: 3.0 # [m]
-      suppress_sudden_obstacle_stop: true
+      suppress_sudden_obstacle_stop: false
 
       stop_obstacle_type:
         unknown: true