Update lint-staged from 6.1.1 to 7.0.0 in /

Author: dependencies-bot

package.json

@@ -23,7 +23,7 @@
     "kotlinx-html": "^0.6.8",
     "lerna": "^2.4.0",
     "lerna-changelog": "^0.7.0",
-    "lint-staged": "^6.0.0",
+    "lint-staged": "^7.0.0",
     "prettier": "^1.7.4",
     "react": "^16.2.0",
     "react-dom": "^16.2.0"