Update nginxproxymanager-v5.sh

issue fixed in v2.9.21

ct/nginxproxymanager-v5.sh

@@ -452,7 +452,6 @@ EOF
 fi
 cd /app
 export NODE_ENV=development
-sed -i 's/"liquidjs": "\^12\.9\.20",/"liquidjs": "\^10.6.1",/g' package.json
 yarn install --network-timeout=30000 &>/dev/null
 msg_ok "Initialized Backend"