[Snyk] Upgrade @antora/site-generator-default from 3.0.0-alpha.7 to 3.1.14#2

mnk-blr wants to merge 1 commit intomainthoughtspot/help-software:mainfrom

snyk-upgrade-a88111ca758e949a1be05e618162ac97thoughtspot/help-software:snyk-upgrade-a88111ca758e949a1be05e618162ac97Copy head branch name to clipboard