Having upgraded systemdspawner to 1.0.0, its configuration option
`disable_user_sudo` now defaults to True. This would be a breaking
unwanted change for our jupyterhub admin users who are configured with
passwordless sudo.
Its unlikeley a breaking change for other users, but could be if they
are granted sudo rights without being a jupyterhub admin. But, if they
are, then they could grant themself such rights anyhow so its reasonable
to assume jupyterhub admins only should have sudo rights in a TLJH
installation.