Add cilium to the managed cluster apps template

changelogs/unreleased/cilium-managed-apps.yml

+---
+title: Add cilium to the managed cluster apps template
+merge_request: 22557
+author:
+type: added

lib/gitlab/ci/templates/Managed-Cluster-Applications.gitlab-ci.yml

 apply:
   stage: deploy
-  image: "registry.gitlab.com/gitlab-org/cluster-integration/cluster-applications:v0.5.0"
+  image: "registry.gitlab.com/gitlab-org/cluster-integration/cluster-applications:v0.6.0"
   environment:
     name: production
   variables:
@@ -10,6 +10,7 @@ apply:
     CERT_MANAGER_VALUES_FILE: $CI_PROJECT_DIR/.gitlab/managed-apps/cert-manager/values.yaml
     SENTRY_VALUES_FILE: $CI_PROJECT_DIR/.gitlab/managed-apps/sentry/values.yaml
     GITLAB_RUNNER_VALUES_FILE: $CI_PROJECT_DIR/.gitlab/managed-apps/gitlab-runner/values.yaml
+    CILIUM_VALUES_FILE: $CI_PROJECT_DIR/.gitlab/managed-apps/cilium/values.yaml
   script:
     - gitlab-managed-apps /usr/local/share/gitlab-managed-apps/helmfile.yaml
   only: