chore(package): update lint-staged to version 9.0.0

Author: greenkeeper[bot]

package.json

@@ -46,7 +46,7 @@
     "eslint": "^5.14.0",
     "eslint-config-prettier": "^5.0.0",
     "husky": "^2.0.0",
-    "lint-staged": "^8.1.4",
+    "lint-staged": "^9.0.0",
     "nyc": "^14.0.0",
     "prettier": "^1.16.4"
   }