chore(deps): bump react-scripts from 3.4.3 to 4.0.3

Bumps [react-scripts](https://github.com/facebook/create-react-app/tree/HEAD/packages/react-scripts) from 3.4.3 to 4.0.3.
- [Release notes](https://github.com/facebook/create-react-app/releases)
- [Changelog](https://github.com/facebook/create-react-app/blob/master/CHANGELOG-3.x.md)
- [Commits](https://github.com/facebook/create-react-app/commits/react-scripts@4.0.3/packages/react-scripts)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>