gitlab-ci: Handle authenticated access

When retrieving the artifacts, pass the job token so that things work
fine even for downstreams requiring authenticated access.

Signed-off-by: Emanuele Aina <emanuele.aina@collabora.com>

.gitlab-ci.yml

@@ -16,7 +16,7 @@ variables:
       for BRANCH in $STABLE_BRANCHES $DEV_BRANCHES; do
         echo "Retrieving archive for $BRANCH"
         URL=$CI_API_V4_URL/projects/tests%2Fapertis-test-cases/jobs/artifacts/${osname}%2F${BRANCH}/download?job=render-pages
-        curl --fail --location --output $BRANCH.zip "$URL" && unzip -d public $BRANCH.zip || true
+        curl --header "JOB-TOKEN: $CI_JOB_TOKEN" --fail --location --output $BRANCH.zip "$URL" && unzip -d public $BRANCH.zip || true
       done
       set +x
     - cp static/* public/