build(deps-dev): bump eslint-plugin-react in /cmd/mdl/webapp

Bumps [eslint-plugin-react](https://github.com/jsx-eslint/eslint-plugin-react) from 7.37.2 to 7.37.4.
- [Release notes](https://github.com/jsx-eslint/eslint-plugin-react/releases)
- [Changelog](https://github.com/jsx-eslint/eslint-plugin-react/blob/master/CHANGELOG.md)
- [Commits](jsx-eslint/eslint-plugin-react@v7.37.2...v7.37.4)

---
updated-dependencies:
- dependency-name: eslint-plugin-react
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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