Bump cross-spawn from 4.0.2 to 6.0.6 in /packages/react-scripts#4

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dependabot/npm_and_yarn/packages/react-scripts/cross-spawn-6.0.6milesibastos/create-react-app:dependabot/npm_and_yarn/packages/react-scripts/cross-spawn-6.0.6Copy head branch name to clipboard