ci/lava: Fail faster when getting results

Previously we'd burn 4 minutes waiting for curl to bang its head
trying to get results which would never emerge. Change this so we don't
fail on a 404, and also pull the retry down quicker, so we'll spend a
maximum of 2 minutes waiting for a server to come back, and no minutes
when the results aren't there to be fetched.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34244>

.gitlab-ci/lava/lava-gitlab-ci.yml

@@ -41,7 +41,7 @@ variables:
   tags:
     - $RUNNER_TAG
   after_script:
-    - curl -L --retry 4 -f --retry-all-errors --retry-delay 60 -s "https://${JOB_RESULTS_PATH}" | tar --warning=no-timestamp --zstd -x
+    - curl -L --retry 4 -f --retry-connrefused --retry-delay 30 -s "https://${JOB_RESULTS_PATH}" | tar --warning=no-timestamp --zstd -x
   needs:
     - !reference [.required-for-hardware-jobs, needs]
     - job: alpine/x86_64_lava_ssh_client