build(deps): bump react-markdown from 4.2.2 to 5.0.3

Bumps [react-markdown](https://github.com/remarkjs/react-markdown) from 4.2.2 to 5.0.3.
- [Release notes](https://github.com/remarkjs/react-markdown/releases)
- [Changelog](https://github.com/remarkjs/react-markdown/blob/main/changelog.md)
- [Commits](remarkjs/react-markdown@v4.2.2...5.0.3)

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

Author: dependabot-preview[bot]