Bumps [gatsby-transformer-remark](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-transformer-remark) from 2.8.47 to 2.9.2. - [Release notes](https://github.com/gatsbyjs/gatsby/releases) - [Changelog](https://github.com/gatsbyjs/gatsby/blob/gatsby-transformer-remark@2.9.2/packages/gatsby-transformer-remark/CHANGELOG.md) - [Commits](https://github.com/gatsbyjs/gatsby/commits/gatsby-transformer-remark@2.9.2/packages/gatsby-transformer-remark) Signed-off-by: dependabot[bot] <support@github.com>