use new pipeline images

.gitlab-ci.yml

@@ -2,7 +2,7 @@ default:
   tags:
     - docker-host-linux
   image:
-    name: "${CI_REGISTRY_IMAGE}/helm:latest"
+    name: "cr.gitlab.switch.ch/helm-charts/shibboleth-sp/pipeline-images/helm:latest"
 
 variables:
   NAMESPACE: "shibboleth-sp-helm-chart"
@@ -51,7 +51,7 @@ prepare:
     - main
     - tags
   image:
-    name: "${CI_REGISTRY_IMAGE}/ansible:latest"
+    name: "cr.gitlab.switch.ch/helm-charts/shibboleth-sp/pipeline-images/ansible:latest"
   interruptible: true
   before_script:
     # we only have a POSIX compliant shell (busybox ash), no bash - thus the code here is a bit awkward