Merge branch 'exit-error-if-job-waited-fails' into 'master'

Exit `wait_for_job_to_be_done` as error if the job fails

See merge request gitlab-org/gitlab-ce!23997

scripts/review_apps/review-apps.sh

@@ -344,6 +344,7 @@ function wait_for_job_to_be_done() {
 
   if [[ "${job_status}" == "failed" ]]; then
     echo "The '${job_name}' failed."
+    exit 1
   elif [[ "${job_status}" == "manual" ]]; then
     echo "The '${job_name}' is manual."
   else