Fix: Allow node renaming in ROS2 to avoid duplicate nodes (#22)

[foiegreis]

Fix: Allow node renaming in ROS2

This PR addresses the issue where launching multiple Hesai LiDAR sensors results in multiple nodes with the same name.
Referring to the issue https://github.com/HesaiTechnology/HesaiLidar_ROS_2.0/issues/22

🔹 Changes:

• Added a new parameter ros_node_name in the config file to allow setting custom node names.
• Modified source_drive_common.hpp and source_driver_ros2.hpp
• Modified driver_param.h in the submodule driver to include:

  std::string ros_node_name;

• Modified the .gitmodules file to point to my fork

This is my first PR involving submodules, and I may have missed something. I apologize for any mistakes made during the process.
Please refer to the pull request for the HesaiLidarSDK: https://github.com/HesaiTechnology/HesaiLidar_SDK_2.0/pull/20