use updated ci building blocks for deployment

.gitlab-ci.yml

@@ -2,12 +2,5 @@ include:
   - project: 'sre/ci-building-blocks'
     file: '/gitlab-ci/node/kaniko.yml'
 
-# Helm is used for deploying everything to kubernetes
-# Afterwards we do a rolling restart of our deployment
-deploy helm chart:
-  extends: .auto-deploy-helm-chart
-  environment:
-    name: $CI_COMMIT_REF_SLUG
-    on_stop: tear down
-    auto_stop_in: 1 week
-    url: https://manifest-$CI_COMMIT_REF_SLUG.k3s.os.oxui.de/
+variables:
+  INGRESS_HOSTNAME: manifest-$CI_COMMIT_REF_SLUG