chore(package): update lint-staged to version 8.1.0

Closes #43

Author: greenkeeper[bot]

package.json

@@ -63,7 +63,7 @@
     "husky": "^1.1.2",
     "jest": "latest",
     "jest-matcher-utils": "^23.0.0",
-    "lint-staged": "^7.3.0",
+    "lint-staged": "^8.1.0",
     "sequelize-fixtures": "^0.7.0",
     "sqlite3": "^4.0.0",
     "standard": "latest"