Add docker pull trying to fix registry authentication

.gitlab-industrial-ci-kinetic-with-rosinstall.yml

@@ -20,6 +20,7 @@ industrial_ci_kinetic:
     - apk add --update bash coreutils tar
     - git clone https://github.com/ros-industrial/industrial_ci.git .ci_config
     - docker login ${ARTIFACT_DOCKER_URL} -u ${ARTIFACT_CI_USER} -p ${ARTIFACT_CI_TOKEN}
+    - docker pull tecnalia-robotics.artifact.tecnalia.com/test-robotics/flexbotics-base-devel
   script: .ci_config/gitlab.sh
   variables:
     ROS_DISTRO: kinetic