[Snyk] Upgrade react-dom from 16.8.4 to 16.9.0#2

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snyk-bot wants to merge 1 commit intomasterfrom snyk-upgrade-e9e3a6bfe9c0b1f967f42a73f4886db9

+17-6

Commits on Aug 29, 2019

chore: upgrade react-dom from 16.8.4 to 16.9.0
snyk-test
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