chore(package): update husky to version 4.2.5

Closes #76

Author: greenkeeper[bot]

package.json

@@ -49,7 +49,7 @@
     "eslint-config-prettier": "^6.7.0",
     "eslint-plugin-node": "^10.0.0",
     "graphql": "^14.5.8",
-    "husky": "^3.0.5",
+    "husky": "^4.2.5",
     "mocha": "^6.2.0",
     "nyc": "^14.1.1",
     "prettier": "^1.19.1",