chore(deps-dev): bump eslint-plugin-mdx from 2.0.5 to 2.1.0

Bumps [eslint-plugin-mdx](https://github.com/mdx-js/eslint-mdx) from 2.0.5 to 2.1.0.
- [Release notes](https://github.com/mdx-js/eslint-mdx/releases)
- [Changelog](https://github.com/mdx-js/eslint-mdx/blob/master/CHANGELOG.md)
- [Commits](mdx-js/eslint-mdx@v2.0.5...v2.1.0)

---
updated-dependencies:
- dependency-name: eslint-plugin-mdx
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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