chore(package): update eslint-plugin-node to version 9.1.0

Closes #41

Author: greenkeeper[bot]

package.json

@@ -62,7 +62,7 @@
     "ember-source-channel-url": "^1.0.1",
     "ember-try": "^0.2.23",
     "eslint-plugin-ember": "^5.0.0",
-    "eslint-plugin-node": "^7.0.0",
+    "eslint-plugin-node": "^9.1.0",
     "loader.js": "^4.2.3"
   },
   "engines": {