Bump eslint-plugin-react from 7.21.3 to 7.21.4 (#14968)

Bump eslint-plugin-react from 7.21.3 to 7.21.4 (#14968)

Bumps [eslint-plugin-react](https://github.com/yannickcr/eslint-plugin-react) from 7.21.3 to 7.21.4.
- [Release notes](https://github.com/yannickcr/eslint-plugin-react/releases)
- [Changelog](https://github.com/yannickcr/eslint-plugin-react/blob/master/CHANGELOG.md)
- [Commits](https://github.com/yannickcr/eslint-plugin-react/compare/v7.21.3...v7.21.4)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>