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

Closes #45

Author: greenkeeper[bot]

package.json

@@ -52,7 +52,7 @@
 		"eslint-plugin-babel": "^5.1.0",
 		"eslint-plugin-flowtype": "^2.46.3",
 		"eslint-plugin-import": "^2.11.0",
-		"eslint-plugin-node": "^6.0.1",
+		"eslint-plugin-node": "^9.1.0",
 		"eslint-plugin-promise": "^3.7.0",
 		"eslint-plugin-react": "^7.7.0",
 		"eslint-plugin-standard": "^3.1.0",