chore(package): update commitizen to version 4.1.1

Closes #215

Author: greenkeeper[bot]

package.json

@@ -80,7 +80,7 @@
     "@types/selenium-webdriver": "^4.0.0",
     "browserstack-local": "^1.4.0",
     "codelyzer": "^5.0.1",
-    "commitizen": "^3.0.0",
+    "commitizen": "^4.1.1",
     "core-js": "^2.4.1",
     "coveralls": "^3.0.0",
     "cz-conventional-changelog": "^2.0.0",