feat(ci): add Webex bot to comment SDK version and changelog on merged PRs#4737

vamshigovardhana wants to merge 5 commits intowebex:nextwebex/webex-js-sdk:nextfrom

vamshigovardhana:webex-space-botvamshigovardhana/webex-js-sdk:webex-space-botCopy head branch name to clipboard