add square brackets for prod server

.gitlab-ci.yml

@@ -39,7 +39,7 @@ deploy_prod:
   - eval $(ssh-agent -s)
   - echo $MARCUS_PROD_KEY | base64 --decode | ssh-add -
   script:
-  -  rsync -v -r -e "ssh -o StrictHostKeyChecking=no" --exclude 'static/js/blackbox-search' --delete ./ $MARCUS_USER@"$MARCUS_SERVER":"$DEST"
+  -  rsync -v -r -e "ssh -o StrictHostKeyChecking=no" --exclude 'static/js/blackbox-search' --delete ./ $MARCUS_USER@"[$MARCUS_SERVER_IPV6]":"$DEST"
   - ssh $MARCUS_USER@"$MARCUS_SERVER" "sudo /usr/bin/find /var/www/html/marcus-prod/cache -regex .+ -type f -delete"
   tags:
   - spes