L2SS-747: Add a postgres db dump as an artifact

.gitlab-ci.yml

@@ -462,6 +462,7 @@ integration_test_docker:
       fi
     - apk add --update make bash docker-compose
     - apk add --update bind-tools
+    - apk add --update postgresql14-client gzip
     - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
   script:
     - touch /root/.Xauthority
@@ -486,6 +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
 wheel_packaging:
   stage: packaging
   artifacts: