chore(package): update lint-staged to version 9.1.0

Closes #50

Author: greenkeeper[bot]

package.json

@@ -67,7 +67,7 @@
     "husky": "^1.0.0-rc.13",
     "jsdoc": "https://github.com/BrandonOCasey/jsdoc#feat/plugin-from-cli",
     "karma": "^4.0.1",
-    "lint-staged": "^8.1.0",
+    "lint-staged": "^9.1.0",
     "not-prerelease": "^1.0.1",
     "npm-merge-driver-install": "^1.0.0",
     "npm-run-all": "^4.1.5",