Merge pull request testing-library#48 from Gpx/greenkeeper/lint-staged-8.0.4

Update lint-staged to the latest version 🚀

Author: Gpx

package-lock.json

@@ -42,7 +42,7 @@
     "husky": "1.1.2",
     "jest": "23.6.0",
     "jest-dom": "2.1.0",
-    "lint-staged": "8.0.3",
+    "lint-staged": "8.0.4",
     "prettier": "1.14.3",
     "react": "16.6.0",
     "react-dom": "16.6.0",