ros-tutorials: updating to 0.4.2

The ros-tutorials recipes are updated to 0.4.2 to be in line with
https://github.com/ros/rosdistro/blob/74f48fa69eeb1cb1d69f2d2f694cdf2fdfc9b40a/hydro/release.yaml.

recipes-ros/ros-tutorials/ros-tutorials.inc

 SRC_URI = "https://github.com/ros/${ROS_SPN}/archive/${PV}.tar.gz;downloadfilename=${ROS_SP}.tar.gz"
-SRC_URI[md5sum] = "48bce9a889933e0b0edb2073a7133486"
-SRC_URI[sha256sum] = "0cac1b15f2741c14a5adba7ea133ac30a1da5d82143ec3c2074273c29a97a980"
+SRC_URI[md5sum] = "ffe9605ce71998a19fbacf8e6de978af"
+SRC_URI[sha256sum] = "05767cba08c36ece986878aae42141537d149d4fe66d4b67e2c3783c887423d3"
 
 S = "${WORKDIR}/${ROS_SP}/${ROS_BPN}"