[Snyk] Upgrade @slack/web-api from 7.9.1 to 7.13.0#1

mnk-blr wants to merge 1 commit intomainthoughtspot/developer-examples:mainfrom

snyk-upgrade-36aaf7badfd9bff4c3fdf0752055fb3cthoughtspot/developer-examples:snyk-upgrade-36aaf7badfd9bff4c3fdf0752055fb3cCopy head branch name to clipboard