Update Auto-DevOps helm to v2.16.1

changelogs/unreleased/helm-v2-16-1.yml

+---
+title: Helm v2.16.1
+merge_request: 19981
+author:
+type: fixed

lib/gitlab/ci/templates/Jobs/DAST-Default-Branch-Deploy.gitlab-ci.yml

 .dast-auto-deploy:
-  image: "registry.gitlab.com/gitlab-org/cluster-integration/auto-deploy-image:v0.4.0"
+  image: "registry.gitlab.com/gitlab-org/cluster-integration/auto-deploy-image:v0.6.0"
 
 dast_environment_deploy:
   extends: .dast-auto-deploy

lib/gitlab/ci/templates/Jobs/Deploy.gitlab-ci.yml

 .auto-deploy:
-  image: "registry.gitlab.com/gitlab-org/cluster-integration/auto-deploy-image:v0.4.0"
+  image: "registry.gitlab.com/gitlab-org/cluster-integration/auto-deploy-image:v0.6.0"
 
 review:
   extends: .auto-deploy