Update yarn.lock after pulling in latest changes

Created by: Tirokk

Authored by mattwr18 Dec 4, 2019 Merged Dec 5, 2019

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• not sure why these changes were not merged in with the PR that upgraded these packages... maybe the dependabot PR was not rebased after merging another package bump in?? anyways, everytime I run yarn install in webapp after pulling in the latest changes, this appears.