update ros repositories

c.f https://discourse.ros.org/t/new-gpg-keys-deployed-for-packages-ros-org/9454

.travis.sh

@@ -58,7 +58,8 @@ travis_time_start setup_ros
 export CI_SOURCE_PATH=$(pwd)
 export REPOSITORY_NAME=${PWD##*/}
 echo "Testing branch $TRAVIS_BRANCH of $REPOSITORY_NAME"
-sudo -E sh -c 'echo "deb http://packages.ros.org/ros-shadow-fixed/ubuntu ${DISTRO} main" > /etc/apt/sources.list.d/ros-latest.list'
+sudo -E sh -c 'echo "deb http://packages.ros.org/ros-testing/ubuntu ${DISTRO} main" > /etc/apt/sources.list.d/ros-latest.list'
+sudo -E sh -c 'echo "deb http://snapshots.ros.org/hydro/final/ubuntu ${DISTRO} main" > /etc/apt/sources.list.d/ros-latest.list'
 wget http://packages.ros.org/ros.key -O - | sudo apt-key add -
 sudo apt-get update -qq
 sudo apt-get install dpkg -y # for https://github.com/ros/rosdistro/issues/19481