Restore promote check

Author: philwebb

ci/scripts/promote.sh

@@ -29,7 +29,7 @@ curl \
 	-d "{\"status\": \"staged\", \"sourceRepo\": \"libs-staging-local\", \"targetRepo\": \"${targetRepo}\"}"  \
 	-f \
 	-X \
-	POST "${ARTIFACTORY_SERVER}/api/build/promote/${buildName}/${buildNumber}" > /dev/null || { echo "Failed to promote" >&2; }
+	POST "${ARTIFACTORY_SERVER}/api/build/promote/${buildName}/${buildNumber}" > /dev/null || { echo "Failed to promote" >&2; exit 1; }
 
 echo "Promotion complete"
 echo $version > version/version