ci: mark radv-raven-traces-restricted with allow_failure

restricted trace jobs are allowed to fail

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33244>
diff --git a/src/amd/ci/gitlab-ci.yml b/src/amd/ci/gitlab-ci.yml
index 6626a86..e26a1d0 100644
--- a/src/amd/ci/gitlab-ci.yml
+++ b/src/amd/ci/gitlab-ci.yml
@@ -101,6 +101,7 @@
     PIGLIT_REPLAY_DEVICE_NAME: "vk-${GPU_VERSION}"
     PIGLIT_REPLAY_EXTRA_ARGS: --keep-image --minio_bucket=${S3_TRACIE_PRIVATE_BUCKET} --jwt-file=${S3_JWT_FILE}
     FDO_CI_CONCURRENT: 10
+  allow_failure: true
 
 radeonsi-raven-piglit:
   extends: