chore(package): update husky to version 4.2.0

Closes #25

Author: greenkeeper[bot]

package.json

@@ -35,7 +35,7 @@
     "node-zookeeper-client": "^0.2.2"
   },
   "devDependencies": {
-    "husky": "^1.0.0",
+    "husky": "^4.2.0",
     "lint-staged": "^4.2.1",
     "mocha": "^5.0.0",
     "prettier-standard": "^6.0.0",