(from #33650 comment:32)

It was moved in #29111 to build/bin/sage-site, but it does have some (limited - #30475) functionality for users.

sage-docbuild would be declared as an install-requires of sagemath-standard. #29941 also declares it as an extras-require of sagemath-environment.

CC: @jhpalmieri @collares @kiwifb @kwankyu

Component: scripts

Author: Kwankyu Lee

Branch/Commit: fc9b96f

Reviewer: Matthias Koeppe

Issue created by migration from https://trac.sagemath.org/ticket/33795