build(deps-dev): bump gatsby-plugin-mdx from 1.1.3 to 1.1.4
build(deps-dev): bump gatsby-plugin-mdx from 1.1.3 to 1.1.4

Bumps [gatsby-plugin-mdx](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-plugin-mdx) from 1.1.3 to 1.1.4.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-plugin-mdx/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/commits/gatsby-plugin-mdx@1.1.4/packages/gatsby-plugin-mdx)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
no23reason/react-geolocated,no23reason/react-geolocated