Use dind executor for Docker deploy

.gitlab-ci.yml

@@ -81,7 +81,7 @@ spotbugs:
 .deploy:
   stage: deploy
   tags:
-    - exec-docker
+    - exec-dind
   # see https://docs.gitlab.com/ee/ci/docker/using_docker_build.html#tls-enabled
   # for image usage and settings for building with TLS and docker in docker
   image: docker:19.03.1