Delete old files on sftp update

.gitlab-ci.yml

@@ -19,7 +19,7 @@ prod-ftp:
   image: harbor.sch.bme.hu/kszk/lftp:latest
   script:
     - lftp -e "set dns:order 'inet inet6';
-      mirror  --parallel=5 --verbose -R public/ site/kszk/ ; quit"
+      mirror --parallel=5 --delete --verbose -R public/ site/kszk/ ; quit"
       -u $FTP_USER,$FTP_PASS $FTP_HOST
   only:
     - master