build(deps-dev): bump titanium-docgen from 4.10.3 to 4.10.4

Bumps [titanium-docgen](https://github.com/appcelerator/docs-devkit/tree/HEAD/packages/titanium-docgen) from 4.10.3 to 4.10.4.
- [Changelog](https://github.com/tidev/docs-devkit/blob/develop/packages/titanium-docgen/CHANGELOG.md)
- [Commits](https://github.com/appcelerator/docs-devkit/commits/titanium-docgen@4.10.4/packages/titanium-docgen)

---
updated-dependencies:
- dependency-name: titanium-docgen
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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