chore: bump the patch group with 2 updates

Bumps the patch group with 2 updates: [mdbook-core](https://github.com/rust-lang/mdBook) and [mdbook-preprocessor](https://github.com/rust-lang/mdBook).


Updates `mdbook-core` from 0.5.2 to 0.5.3
- [Release notes](https://github.com/rust-lang/mdBook/releases)
- [Changelog](https://github.com/rust-lang/mdBook/blob/master/CHANGELOG.md)
- [Commits](rust-lang/mdBook@v0.5.2...v0.5.3)

Updates `mdbook-preprocessor` from 0.5.2 to 0.5.3
- [Release notes](https://github.com/rust-lang/mdBook/releases)
- [Changelog](https://github.com/rust-lang/mdBook/blob/master/CHANGELOG.md)
- [Commits](rust-lang/mdBook@v0.5.2...v0.5.3)

---
updated-dependencies:
- dependency-name: mdbook-core
  dependency-version: 0.5.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: patch
- dependency-name: mdbook-preprocessor
  dependency-version: 0.5.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: patch
...

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Author: dependabot[bot]