update nodered version

Author: skadefro

OpenFlowNodeRED/package.json

@@ -42,7 +42,7 @@
     "google-auth-library": "^7.0.4",
     "jsonwebtoken": "^8.5.1",
     "morgan": "^1.10.0",
-    "node-red": "2.1.1",
+    "node-red": "^2.1.4",
     "passport-saml": "^3.2.0",
     "passport-saml-metadata": "^2.5.0",
     "pm2": "^4.5.6",