suppress test warning in catkin run_tests #163

Job	Run time
jenkins_hydro	38m 43s
hydro	9m 35s
indigo	14m 8s
jenkins_kinetic	40m 26s
jenkins_kinetic_pcl	29m 59s
jenkins_melodic	41m 59s
jenkins_melodic_pcl	33m 20s
jenkins_noetic	29m 47s
jenkins_noetic_pcl	22m 37s
kinetic	11m 45s
melodic	14m 4s
check_python3	6s
docker_kinetic	8m 49s
docker_melodic	10m 0s
docker_noetic	4m 40s
jenkins_indigo	42m 3s
melodic_catkin_make	12m 43s
melodic_repository_path	12m 51s
melodic_test_packages	15m 42s
melodic_unencrypted_git_protocol	23m 0s
noetic	5m 36s
noetic_python2	10m 37s
noetic_python3	5m 50s
	7h 18m 20s

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