GitLab

Summary:
The first step to migrate doc build to GHA.

Pull Request resolved: https://github.com/pytorch/audio/pull/3043

Reviewed By: xiaohui-zhang

Differential Revision: D43110816

Pulled By: mthrok

fbshipit-source-id: 91de5f3ac567188e7030f14c2827a202a1901f1a