gitlab-ci: Download traces from MinIO
Downloading the traces directly from git causes very high egress from
GCE, which is expensive.
So we can expand trace testing further, we are going to keep a cache in
freedesktop.org's MinIO instance. This commit implements downloading
from it.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-By: Rohan Garg <rohan.garg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5472>