refactor(task_4): adjust movement parameters and image save path

- Modify go_straight distance from 10 to 6 in task 4
- Update image save path in rgb-camera test

task_4/task_4.py

@@ -22,5 +22,5 @@ def run_task_4(ctrl, msg):
 
     turn_degree(ctrl, msg, 90, absolute=90)
 
-    go_straight(ctrl, msg, distance=10)
+    go_straight(ctrl, msg, distance=6)
 

test/ros2/rgb-camera/img-raw-get.py

@@ -51,7 +51,7 @@ class ImageSubscriber(Node):
         if self.cv_image is not None:
             # Generate a timestamped filename
             timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
-            filename = f"captured_images/path/image_{timestamp}.png"
+            filename = f"../captured_images/test/image_{timestamp}.png"
             
             cv2.imwrite(filename, self.cv_image)
             self.get_logger().info(f"Saved image as {filename}")