Bump react-dev-utils from 5.0.1 to 5.0.3 in /web-page (#39)

Bumps [react-dev-utils](https://github.com/facebook/create-react-app/tree/HEAD/packages/react-dev-utils) from 5.0.1 to 5.0.3.
- [Release notes](https://github.com/facebook/create-react-app/releases)
- [Changelog](https://github.com/facebook/create-react-app/blob/master/CHANGELOG-1.x.md)
- [Commits](https://github.com/facebook/create-react-app/commits/[email protected]/packages/react-dev-utils)

Signed-off-by: dependabot[bot] <[email protected]>