chore(package): update lint-staged to version 8.1.5

Closes #86

Author: greenkeeper[bot]

package.json

@@ -46,7 +46,7 @@
     "eslint-plugin-react": "^7.1.0",
     "eslint-plugin-unicorn": "^4.0.2",
     "husky": "^0.14.0",
-    "lint-staged": "^7.0.0",
+    "lint-staged": "^8.1.5",
     "npm-run-all": "^4.0.0",
     "npmpub": "^3.1.0",
     "nyc": "^11.0.0",