build(deps-dev): bump docsify from 4.12.1 to 4.13.1

Bumps [docsify](https://github.com/docsifyjs/docsify) from 4.12.1 to 4.13.1.
- [Release notes](https://github.com/docsifyjs/docsify/releases)
- [Changelog](https://github.com/docsifyjs/docsify/blob/v4.13.1/CHANGELOG.md)
- [Commits](docsifyjs/docsify@v4.12.1...v4.13.1)

---
updated-dependencies:
- dependency-name: docsify
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>