[Snyk] Upgrade postcss from 8.4.6 to 8.4.8#2

snyk-bot wants to merge 1 commit intomaindirgam92/nodejs.org:mainfrom

snyk-upgrade-d00fff6c799d85cc1f6a8cbf922e072ddirgam92/nodejs.org:snyk-upgrade-d00fff6c799d85cc1f6a8cbf922e072dCopy head branch name to clipboard