135039f526
This commit introduces multiple changes:
1. Now we check for mainline artifacts only when NOT running on
the mainline branch
2. if we run on the fork and get 404-like error, it doesn't retry.
Reviewed-by: Guilherme Gallo <guilherme.gallo@collabora.com>
Signed-off-by: David Heidelberg <david.heidelberg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22386>