Exit as error if job fails

If a script is waiting for a job to be done and that job fails,
exit with an error status so that the script doesn't continue
with a prerequisite in an invalid state.

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