bump to 2.0.4

package.json

@@ -1,6 +1,6 @@
 {
     "name": "electron_node_red",
-    "version": "2.0.3",
+    "version": "2.0.4",
     "description": "Electron Node-RED application starter kit for development",
     "main": "main.js",
     "NRelectron": {
@@ -29,7 +29,7 @@
         "electron-is-dev": "^2.0.0",
         "electron-store": "^8.0.0",
         "express": "^4.17.1",
-        "node-red": "2.0.3",
+        "node-red": "2.0.4",
         "node-red-contrib-play-audio": "*",
         "node-red-contrib-web-worldmap": "*",
         "node-red-dashboard": "*",