Update metadata for style

doc/user/clusters/agent/gitops/example_repository_structure.md

 ---
 stage: Deploy
 group: Environments
-info: A tutorial for deploying a GitLab repository using Flux
+info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://handbook.gitlab.com/handbook/product/ux/technical-writing/#assignments
 ---
 
 # Tutorial: Deploy a Git repository using Flux **(FREE ALL)**

doc/user/clusters/agent/gitops/flux_oci_tutorial.md

 ---
 stage: Deploy
 group: Environments
-info: A tutorial for deploying an OCI artifact using Flux
+info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://handbook.gitlab.com/handbook/product/ux/technical-writing/#assignments
 ---
 
 # Tutorial: Deploy an OCI artifact using Flux **(FREE ALL)**

doc/user/clusters/agent/gitops/flux_tutorial.md

 ---
 stage: Deploy
 group: Environments
-info: A tutorial using Flux
+info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://handbook.gitlab.com/handbook/product/ux/technical-writing/#assignments
 ---
 
 # Tutorial: Set up Flux for GitOps **(FREE ALL)**