Bump auto-deploy-image for dast deploy to 0.9.1

- https://gitlab.com/gitlab-org/cluster-integration/auto-deploy-image/-/tags/v0.9.0
- https://gitlab.com/gitlab-org/cluster-integration/auto-deploy-image/-/tags/v0.9.1

changelogs/unreleased/dast-deploy-bump-0-9-1.yml

+---
+title: Bump DAST deploy auto-deploy-image to 0.9.1
+merge_request: 24232
+author:
+type: other

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:v0.8.3"
+  image: "registry.gitlab.com/gitlab-org/cluster-integration/auto-deploy-image:v0.9.1"
 
 dast_environment_deploy:
   extends: .dast-auto-deploy