Update lint-staged to the latest version 🚀 (#5406)

* chore(package): update lint-staged to version 8.1.5

* chore(package): update lockfile package-lock.json

Author: greenkeeper[bot]

package-lock.json

@@ -64,7 +64,7 @@
     "jasmine-spec-reporter": "4.2.1",
     "jsdoc": "3.5.5",
     "jsdoc-babel": "0.5.0",
-    "lint-staged": "8.1.0",
+    "lint-staged": "8.1.5",
     "mongodb-runner": "4.3.2",
     "nyc": "13.1.0",
     "prettier": "1.16.4",