Bump auto-deploy-image as part of

Deploy.latest.gitlab-ci.yml.
From version 2.0.0 to 2.6.0

changelogs/unreleased/bump_auto_deploy_image_version.yml

+title: Bump auto-deploy-image tag in Deploy.latest.gitlab-ci.yml to v2.6.0, which includes changes to ciliumnetworkpolicies.
+merge_request: 54983
+author:
+type: added

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

 .auto-deploy:
-  image: "registry.gitlab.com/gitlab-org/cluster-integration/auto-deploy-image:v2.0.0"
+  image: "registry.gitlab.com/gitlab-org/cluster-integration/auto-deploy-image:v2.6.0"
   dependencies: []
 
 review: