chore(package): update husky to version 4.2.2

Closes #27

Author: greenkeeper[bot]

package.json

@@ -58,7 +58,7 @@
     "eslint-plugin-jsx-a11y": "^6.1.1",
     "eslint-plugin-react": "^7.10.0",
     "firebase-tools": "^4.1.2",
-    "husky": "^2.0.0",
+    "husky": "^4.2.2",
     "istanbul": "^0.4.5",
     "mocha": "^6.0.0",
     "rimraf": "^2.6.2",