(#848) CI: remove the "crun" tag from all the jobs that had it
(#848) CI: remove the "crun" tag from all the jobs that had it

It was required for
https://gitlab.gnome.org/GNOME/librsvg/-/issues/848 - downstream from
https://gitlab.gnome.org/Infrastructure/GitLab/-/issues/545 - but now
all the CentOS runners are replaced with Fedora ones.

Fixes #848.

Part-of: <https://gitlab.gnome.org/GNOME/librsvg/-/merge_requests/716>

GNOME/librsvg,GNOME/librsvg,GNOME/librsvg,GNOME/librsvg