Move ros-workspace test to catkin build scripts.

[nuclearsandwich]

The ros_workspace package is a plain CMake (as opposed to an ament_cmake) package and thus uses the catkin build scripts rather than the ament_cmake build scripts.

By moving this test I'm able to locally generate scripts with vinca that add activation and deactivation scripts.

❯ tar tf /home/steven/mambaforge/conda-bld/linux-64/ros-galactic-ros-workspace-1.0.2-py38he9ab703_99.tar.bz2 | sort |grep '^etc'         (base)
etc/conda/activate.d/ros-galactic-ros-workspace_activate.sh
etc/conda/deactivate.d/ros-galactic-ros-workspace_deactivate.sh

[wolfv]

cool! let's rebuild the packages.

[Tobias-Fischer]

Just needs rebuilding of ros-workspace? Are you on it, or should I do it @wolfv?

[wolfv]

It should be done :)