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

Author: greenkeeper[bot]

package.json

@@ -34,7 +34,7 @@
  "html-webpack-plugin": "^3.2.0",
  "husky": "^2.3.0",
  "jest": "^24.8.0",
- "lint-staged": "^8.1.7",
+ "lint-staged": "^9.0.0",
  "prettier": "^1.17.1",
  "react": "16.8.6",
  "react-dom": "16.8.6",