chore(package): update cz-lerna-changelog to version 1.2.0

Closes #171

https://greenkeeper.io/

Author: greenkeeper[bot]

package.json

@@ -40,7 +40,7 @@
   },
   "devDependencies": {
     "commitizen": "^2.8.6",
-    "cz-lerna-changelog": "^0.3.0",
+    "cz-lerna-changelog": "^1.2.0",
     "lerna": "2.0.0-beta.30",
     "lerna-semantic-release": "^8.0.2"
   }