Use GPS coordinates of Fly Roma in simulation

For the PROACTIF project we need to use the Fly Roma coordinates also in simulation to be aligned with the simulation of the drone. Use the following:
https://github.com/monemati/PX4-ROS2-Gazebo-YOLOv8/blob/839f4d36b7ca7a5d8fe09743aa2bb733723b4f4e/worlds/default_docker.sdf#L234-L240 