Lidar Republisher Node

This is a simple ROS2 node that republishes Lidar scan messages with an updated timestamp. It listens to Lidar scan messages on the /scan_tmp topic, updates the timestamp of the message, and republishes it to the /scan topic.

Features

• Subscribes to Lidar scan messages on /scan_tmp.
• Updates the timestamp of the incoming messages.
• Republishes the modified messages to the /scan topic.