Update dependency lint-staged to v9.4.1

Author: renovate-bot

package.json

@@ -48,7 +48,7 @@
     "eslint-plugin-standard": "4.0.1",
     "husky": "3.0.5",
     "jest": "24.9.0",
-    "lint-staged": "9.3.0",
+    "lint-staged": "9.4.1",
     "nock": "11.3.5",
     "prettier": "1.18.2"
   },