We should be explicit that we are cancelling jobs once the script finds
some log messages that are linked with known issues. That means the
script preemptively retried the job without giving chances to recover.
Adds magenta color to cancelled jobs.
Signed-off-by: Guilherme Gallo <guilherme.gallo@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17389>