duplicate before_script for dockerhub job

.gitlab-ci.yml

@@ -51,6 +51,9 @@ release:
 dockerhub:
   stage: release
   before_script:
+    - mkdir -p /root/.docker || true
+    - echo '{"experimental":"enabled"}' > /root/.docker/config.json
+    - docker login -u ${CI_REGISTRY_USER} -p ${CI_REGISTRY_PASSWORD} ${CI_REGISTRY}
     - docker login -u ${DOCKERHUB_USER} -p ${DOCKERHUB_PASSWORD} ${DOCKERHUB_REGISTRY}
   script:
     - docker pull ${CI_REGISTRY_IMAGE}:${CI_PIPELINE_ID}-amd64