Fix import ordering in ros_tests

Author: civerachb-cpr

turtlebot4_tests/turtlebot4_tests/ros_tests.py

@@ -34,6 +34,7 @@
 
 from irobot_create_msgs.action import Dock, DriveDistance, RotateAngle, Undock
 from irobot_create_msgs.msg import DockStatus, InterfaceButtons, LightringLeds
+from irobot_create_msgs.srv import EStop
 
 from nav_msgs.msg import Odometry
 
@@ -42,8 +43,6 @@
 from rclpy.node import Node
 from rclpy.qos import qos_profile_sensor_data
 
-from irobot_create_msgs.srv import EStop
-
 from std_msgs.msg import String
 
 from turtlebot4_msgs.msg import UserButton, UserLed