chore(package): update lint-staged to version 4.0.1

Author: greenkeeper[bot]

package.json

@@ -53,7 +53,7 @@
     "eslint-plugin-prettier": "^2.0.1",
     "husky": "^0.14.3",
     "jest": "^20.0.4",
-    "lint-staged": "^3.4.0",
+    "lint-staged": "^4.0.1",
     "prettier": "^1.3.1"
   },
   "scripts": {