L2SS-747: Fix integration tests

Closes L2SS-747

.gitlab-ci.yml

@@ -487,7 +487,7 @@ integration_test_docker:
         echo "Saving log for container $container"
         docker logs "${container}" >& "log/${container}.log"
       done
-      PGPASSWORD=password pg_dump --host=docker --username=postgres hdb | gzip > log/archiver-timescale-dump.txt.gz
+      PGPASSWORD=password pg_dump --host=docker --username=postgres hdb 2>log/archiver-timescale-dump.log | gzip > log/archiver-timescale-dump.txt.gz
 wheel_packaging:
   stage: packaging
   artifacts: