[Snyk] Upgrade hexo from 6.2.0 to 6.3.0#2

mayank1513 wants to merge 1 commit intomastermayank1513/vuejs.org:masterfrom

snyk-upgrade-ada467dcf5ecbb5b58e1f7b1bd1f55b6mayank1513/vuejs.org:snyk-upgrade-ada467dcf5ecbb5b58e1f7b1bd1f55b6Copy head branch name to clipboard