Integrate change log action

[preetkaran20]

Is your feature request related to a problem? Please describe. Currently i forget to checkin/update change log file and merge the PR and it is not right. so we can integrate an action which will not pass for a PR if changelog.md file is not modified. https://github.com/marketplace/actions/changelog-checker is one github action i found and i think we can give it a try. If this checker has some issues then we can write some common function to do the same as this is a generic problem and might be faced by many.