[jsk_topic_tools] add allow_headerless option to synchronize_republish #418

Job	Run time
ubuntu (ubuntu:22.04)	34m 26s
ubuntu (ubuntu:22.04)	34m 26s
ros (indigo, jskrobotics/ros-ubuntu:14.04, -j8, sudo pip install virtualenv==15.1.0 setuptools==4...	11m 14s
ros (indigo, jskrobotics/ros-ubuntu:14.04, -j8, sudo pip install virtualenv==15.1.0 setuptools==4...	17m 20s
ros (kinetic, ubuntu:16.04, -j8)	18m 7s
ros (kinetic, ubuntu:16.04, -j8)	18m 7s
ros (melodic, ubuntu:18.04, -j8)	21m 2s
ros (melodic, ubuntu:18.04, -j8)	21m 2s
ros (noetic, ubuntu:20.04, -j8)	25m 59s
ros (noetic, ubuntu:20.04, -j8)	25m 59s
ros (noetic, ubuntu:20.04, -j8, virtual_force_publisher, --cmake-args -DCMAKE_CXX_FLAGS=-std=c++1...	10m 56s
ros (noetic, ubuntu:20.04, -j8, virtual_force_publisher, --cmake-args -DCMAKE_CXX_FLAGS=-std=c++1...	10m 56s
	4h 9m 34s

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