This will make the 2-stage builds from #33062 more robust (see #33816 comment:60) and will make the
devcontainer feature based on the portability images (https://trac.sagemath.org/wiki/ReleaseTours/sage-9.7#VisualStudioCodedevcontainers) more useful.

CC: @dimpase @tobiasdiez @jhpalmieri

Component: porting

Author: Matthias Koeppe

Branch/Commit: 9696b34

Reviewer: Dima Pasechnik

Issue created by migration from https://trac.sagemath.org/ticket/34572