back to base, likely issue with OS change

ci_scripts/install_ros.bash

@@ -10,7 +10,7 @@ echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/ros-a
 sudo apt update
 sudo apt install -y dpkg # fix https://github.com/travis-ci/travis-ci/issues/10132
 sudo apt install -y xvfb  # `xvfb-run` is used in scrpt.bash
-sudo apt install -y ros-$ROS_DISTRO-desktop # ros-base ros-dev-tools
+sudo apt install -y ros-$ROS_DISTRO-ros-base
 sudo apt install -y $PYTHON-rosinstall $PYTHON-rosinstall-generator $PYTHON-wstool ros-dev-tools $PYTHON-catkin-pkg $PYTHON-rosdep $PYTHON-osrf-pycommon
 sudo rosdep init
 rosdep update --rosdistro=${ROS_DISTRO}