Bump lint-staged from 8.1.7 to 9.2.0 (#31)

Bumps [lint-staged](https://github.com/okonet/lint-staged) from 8.1.7 to 9.2.0.
- [Release notes](https://github.com/okonet/lint-staged/releases)
- [Commits](lint-staged/lint-staged@v8.1.7...v9.2.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -19,7 +19,7 @@
     "eslint": "^5.16.0",
     "eslint-config-prettier": "^6.0.0",
     "husky": "^2.7.0",
-    "lint-staged": "^8.1.7",
+    "lint-staged": "^9.2.0",
     "next": "^8.1.0",
     "prettier": "^1.18.2"
   },