fix: avoid publishing zero size images

.gitlab-ci.yml

@@ -167,10 +167,9 @@ version:
   extends: .build
   variables:
     BUILD_IMAGE: dind
-    EXPORT_TAG: ${CI_COMMIT_REF_NAME}
   script:
     - docker buildx build --push
-        --tag ${CI_REGISTRY}/${CI_PROJECT_PATH}/${BUILD_IMAGE}:${CI_COMMIT_REF_NAME}
+        --tag ${CI_REGISTRY}/${CI_PROJECT_PATH}/${BUILD_IMAGE}:${INTERNAL_TAG}
         ${EXPORT_TAG:+
           ${CI_PUSH:+--tag ${CI_REGISTRY}/${CI_PROJECT_PATH}/${BUILD_IMAGE}:${EXPORT_TAG}}
           ${DH_PUSH:+--tag ${DH_REGISTRY}/${DH_REGISTRY_USER}/${BUILD_IMAGE}:${EXPORT_TAG}}
@@ -207,7 +206,6 @@ dind-deploy:
   rules:
     - when: manual
   variables:
-    BUILD_IMAGE: dind
     EXPORT_TAG: master
 
 base: