chore(package): update eslint-plugin-node to version 8.0.0

Closes #76

Author: greenkeeper[bot]

package.json

@@ -40,7 +40,7 @@
     "eslint-plugin-jest": "^21.2.0",
     "eslint-plugin-jsx-a11y": "^6.0.0",
     "eslint-plugin-lodash": "^2.4.3",
-    "eslint-plugin-node": "^6.0.1",
+    "eslint-plugin-node": "^8.0.0",
     "eslint-plugin-prettier": "^2.1.2",
     "eslint-plugin-promise": "^3.5.0",
     "eslint-plugin-react": "^7.1.0",