[ci] Fix

buildout_pull_images.sh

@@ -49,6 +49,8 @@ if [ ${#MISSING_IMAGES[@]} -gt 0 ]; then
             if ! grep -q "docker.idiap.ch" ~/.docker/config.json ; then
                 docker login docker.idiap.ch
             fi
+        else
+            docker login -u gitlab-ci-token -p $CI_BUILD_TOKEN docker.idiap.ch
         fi
 
         # Pull the images