build: update postpublish script

Author: Scrum

package.json

@@ -18,7 +18,7 @@
   "scripts": {
     "precommit": "clinton && lint-staged",
     "commitmsg": "commitlint --extends=@commitlint/config-angular -e",
-    "postpublish": "conventional-changelog -i changelog.md -s -r 0 && git commit -am \"chore: Update changelog\"",
+    "postpublish": "conventional-changelog -i changelog.md -s -r 0 && git commit -am \"build: update changelog\"",
     "prepare": "npm run build",
     "build": "rimraf lib && babel src -d lib",
     "test": "jest && codecov"