[Snyk] Security upgrade gatsby-plugin-mdx from 3.20.0 to 5.10.0

[hikerpig]

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

#### Changes included in this PR - Changes to the following files to upgrade the vulnerable dependencies to a fixed version: - packages/gatsby-theme-kb/package.json #### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:-------------------------  | **608/1000**
**Why?** Proof of Concept exploit, Recently disclosed, Has a fix available, CVSS 4.3 | Information Exposure
[SNYK-JS-GATSBYPLUGINMDX-5671902](https://snyk.io/vuln/SNYK-JS-GATSBYPLUGINMDX-5671902) | Yes | Proof of Concept (*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: gatsby-plugin-mdx

The new version differs by 250 commits.

• ceb5527 chore(release): Publish
• 5bd48a5 chore(docs): update algolia guide (#38085)
• 89a3232 chore(gatsby-source-contentful): Fix docs pageLimit default value (#38082)
• 7501d18 chore(docs): Typo in v4 to v5 migration guide (#38081)
• cbc0b35 feat(create-gatsby): Add Tailwind as a styling choice (#37944)
• 768581f chore(changelogs): update changelogs (#38077)
• 9284520 fix(deps): update starters and examples gatsby packages to ^5.9.1 (#38073)
• 22394b9 fix(deps): update e2e tests (major) (#38071)
• 9bb9037 chore(deps): update starters and examples (#38067)
• ed5855e fix(gatsby): don't serve codeframes for files outside of compilation (#38059)
• 4cd23bf chore(release): Publish next
• dfdeed4 fix(gatsby-source-drupal): add image cdn support for `files` type and `typePrefix` (#38057)
• e5e2bb7 fix(gatsby-source-drupal): find mimetype field (#38056)
• 38fae7a chore(docs): Improve wording in main tutorial part 6 (#38054)
• a9c54f7 chore(release): Publish next
• d611439 fix(deps): update minor and patch dependencies for gatsby-source-graphql (#38028)
• 213d8b0 fix(deps): update minor and patch dependencies for gatsby-plugin-mdx (#38027)
• 272dacd fix(gatsby): handle cyclic chunkgroup children (#38052)
• a83ed19 fix(deps): update minor and patch dependencies for gatsby (#38005)
• d7cccfe fix(deps): update dependency sharp to ^0.32.1 (#38024)
• 2d2b7c2 chore: Fix dirty lock file
• 1a4b234 chore(deps): update dependency @ jridgewell/trace-mapping to ^0.3.18 for gatsby-legacy-polyfills (#37996)
• ccecd9d chore(deps): update dependency rimraf to v5 for gatsby-page-utils (#38039)
• 94099a9 chore(deps): update dependency rimraf to v5 for gatsby-plugin-utils (#38040)

See the full diff

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