test against Dashing instead of Crystal (#676)
test against Dashing instead of Crystal (#676)

* test against Dashing instead of Crystal

* Use nightly-release variant for CI testing

Signed-off-by: Scott K Logan <8c724d14625be4be480086a9212b212477a303ef@cottsay.net>

ros-infrastructure/ros_buildfarm,ros-infrastructure/ros_buildfarm,ros-infrastructure/ros_buildfarm