gitlab-ci: attach the Fossilize log file as artifact on failure

It might be help.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5627>
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index daab01c..92e006b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -802,6 +802,11 @@
   extends: .test-vk
   script:
     - ./install/fossilize-runner.sh
+  artifacts:
+    when: on_failure
+    name: "mesa_${CI_JOB_NAME}"
+    paths:
+      - results/
 
 llvmpipe-gles2:
   variables: