Fix Dockerfile syntax for ros installation

Author: marc-hanheide

cuda_desktop.dockerfile

@@ -4,5 +4,5 @@ ARG BASE_IMAGE
 FROM ${BASE_IMAGE} AS base
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    ros-${ROS_DISTRO}-ros-desktop \
+    ros-${ROS_DISTRO}-desktop \
     && rm -rf /var/lib/apt/lists/*