MAINT: Use dev as deploy ref again in pipeline

.gitlab-ci.yml

@@ -21,7 +21,7 @@
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 
 variables:
-  DEPLOY_REF: f-http-proxy
+  DEPLOY_REF: dev
   CI_REGISTRY_IMAGE: $CI_REGISTRY/caosdb/src/caosdb-pylib/testenv:latest
   # When using dind, it's wise to use the overlayfs driver for
   # improved performance.