Merge branch '1635-asdf-install-in-gitlab-pages' into 'main'

Add asdf-install target for gitlab-pages

See merge request https://gitlab.com/gitlab-org/gitlab-development-kit/-/merge_requests/3505



Merged-by: Toon Claes <toon@gitlab.com>
Approved-by: Toon Claes <toon@gitlab.com>
Co-authored-by: Nao Hashizume <nhashizume@gitlab.com>