[Snyk] Security upgrade react-scripts from 1.1.4 to 4.0.0#40

jstrachan wants to merge 1 commit intomasterjenkins-x-quickstarts/react-quickstart:masterfrom

snyk-fix-f0d926e7189b40ca18fdfc3945354ecajenkins-x-quickstarts/react-quickstart:snyk-fix-f0d926e7189b40ca18fdfc3945354ecaCopy head branch name to clipboard