ci/venus: reduce pre-merge to fit under 15 min

Currently the run takes ~ 35 minutes, which is too much.

Reported-by: default avatarDaniel Stone <daniels@collabora.com>
Signed-off-by: David Heidelberg <david.heidelberg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25843>
1 file changed