Update husky to the latest version 🚀 (parse-community#5638)

* chore(package): update husky to version 2.4.0

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

Author: greenkeeper[bot]

package-lock.json

@@ -59,7 +59,7 @@
     "eslint-plugin-flowtype": "3.9.1",
     "flow-bin": "0.100.0",
     "gaze": "1.1.3",
-    "husky": "2.3.0",
+    "husky": "2.4.0",
     "jasmine": "3.4.0",
     "jasmine-spec-reporter": "4.2.1",
     "jsdoc": "3.6.2",