[Snyk] Upgrade react-dom from 16.7.0-alpha.0 to 16.9.0#2

snyk-bot wants to merge 1 commit intomastermaxiplux/react-hooks:masterfrom

snyk-upgrade-76da731942a1340be76b54a73f0d262dmaxiplux/react-hooks:snyk-upgrade-76da731942a1340be76b54a73f0d262dCopy head branch name to clipboard