[Snyk] Upgrade core-js from 3.8.3 to 3.9.0#2

obenn wants to merge 1 commit intomasterobenn/chatengine-vue:masterfrom

snyk-upgrade-45e86b7f6f8d3b874d95b47eff2ccd01obenn/chatengine-vue:snyk-upgrade-45e86b7f6f8d3b874d95b47eff2ccd01Copy head branch name to clipboard