fix default user

Dockerfile

@@ -2,7 +2,8 @@ FROM osrf/ros:jazzy-desktop-full-noble
 
 SHELL [ "/bin/bash" , "-c" ]
 
-# Add sourcing ROS setup.bash to .bashrc
+USER ubuntu
+
 RUN echo "source /opt/ros/${ROS_DISTRO}/setup.bash" >> ~/.bashrc
 RUN echo "source /usr/share/colcon_cd/function/colcon_cd.sh" >> ~/.bashrc
 RUN echo "source /usr/share/colcon_argcomplete/hook/colcon-argcomplete.bash" >> ~/.bashrc