chore(package): update husky to version 4.2.5

Closes #19

Author: greenkeeper[bot]

package.json

@@ -65,7 +65,7 @@
     "eslint-plugin-prettier": "^3.0.0",
     "flow-bin": "^0.92.1",
     "flow-typed": "^2.5.1",
-    "husky": "^1.1.2",
+    "husky": "^4.2.5",
     "jest": "^23.6.0",
     "lint-staged": "^8.1.0",
     "prettier": "^1.14.3",