Bump apidoc from 0.29.0 to 0.50.1

Bumps [apidoc](https://github.com/apidoc/apidoc) from 0.29.0 to 0.50.1.
- [Release notes](https://github.com/apidoc/apidoc/releases)
- [Changelog](https://github.com/apidoc/apidoc/blob/master/CHANGELOG.md)
- [Commits](apidoc/apidoc@0.29.0...0.50.1)

---
updated-dependencies:
- dependency-name: apidoc
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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