deps: bump the dependency-updates group with 6 updates

Bumps the dependency-updates group with 6 updates:

| Package | From | To |
| --- | --- | --- |
| [gatsby](https://github.com/gatsbyjs/gatsby) | `5.13.7` | `5.14.0` |
| [gatsby-plugin-manifest](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-plugin-manifest) | `5.13.1` | `5.14.0` |
| [gatsby-plugin-mdx](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-plugin-mdx) | `5.13.1` | `5.14.0` |
| [gatsby-plugin-styled-components](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-plugin-styled-components) | `6.13.1` | `6.14.0` |
| [gatsby-source-filesystem](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-source-filesystem) | `5.13.1` | `5.14.0` |
| [gatsby-transformer-yaml](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-transformer-yaml) | `5.13.1` | `5.14.0` |


Updates `gatsby` from 5.13.7 to 5.14.0
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/compare/[email protected]@5.14.0)

Updates `gatsby-plugin-manifest` from 5.13.1 to 5.14.0
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-plugin-manifest/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/commits/[email protected]/packages/gatsby-plugin-manifest)

Updates `gatsby-plugin-mdx` from 5.13.1 to 5.14.0
- [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/[email protected]/packages/gatsby-plugin-mdx)

Updates `gatsby-plugin-styled-components` from 6.13.1 to 6.14.0
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-plugin-styled-components/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/commits/[email protected]/packages/gatsby-plugin-styled-components)

Updates `gatsby-source-filesystem` from 5.13.1 to 5.14.0
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-source-filesystem/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/commits/[email protected]/packages/gatsby-source-filesystem)

Updates `gatsby-transformer-yaml` from 5.13.1 to 5.14.0
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-transformer-yaml/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/commits/[email protected]/packages/gatsby-transformer-yaml)

---
updated-dependencies:
- dependency-name: gatsby
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dependency-updates
- dependency-name: gatsby-plugin-manifest
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dependency-updates
- dependency-name: gatsby-plugin-mdx
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dependency-updates
- dependency-name: gatsby-plugin-styled-components
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dependency-updates
- dependency-name: gatsby-source-filesystem
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dependency-updates
- dependency-name: gatsby-transformer-yaml
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dependency-updates
...

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

Author: dependabot[bot]