Docs: Add deprecation notice to all cert-based features

Problem to solve

Add deprecation notice to all features affected by the deprecation of the certificate-based integration with Kubernetes.

Further details

Proposal

Update the following docs.

!72903 (merged):

  • doc/user/project/clusters/index.md
  • doc/user/project/clusters/multiple_kubernetes_clusters.md
  • doc/user/project/clusters/add_existing_cluster.md
  • doc/user/project/clusters/add_remove_clusters.md
  • doc/user/project/clusters/add_eks_clusters.md
  • doc/user/project/clusters/add_gke_clusters.md
  • doc/user/project/clusters/cluster_access.md
  • doc/user/project/clusters/deploy_to_cluster.md
  • doc/user/project/clusters/protect/container_host_security/index.md
  • doc/user/project/clusters/protect/container_host_security/quick_start_guide.md
  • doc/user/project/clusters/serverless/aws.md
  • doc/user/project/clusters/gitlab_managed_clusters.md
  • doc/user/project/clusters/kubernetes_pod_logs.md

!72981 (merged):

  • doc/user/group/clusters/index.md
  • doc/api/group_clusters.md
  • doc/user/instance/clusters/index.md
  • doc/api/instance_clusters.md
  • doc/api/project_clusters.md
  • doc/user/clusters/applications.md
  • doc/user/clusters/cost_management.md
  • doc/user/clusters/crossplane.md
  • doc/user/clusters/environments.md
  • doc/user/clusters/integrations.md
  • doc/user/clusters/management_project.md
  • doc/administration/integration/terminal.md
  • doc/user/project/clusters/protect/index.md

!72879 (merged):

  • doc/user/clusters/management_project_template.md
  • doc/user/clusters/migrating_from_gma_to_project_template.md
  • doc/user/clusters/management_project.md

!73003 (merged):

  • doc/user/infrastructure/clusters/connect/index.md

!73368 (merged):

  • doc/ci/environments/index.md

!73386 (merged):

  • doc/user/project/canary_deployments.md

!73395 (merged):

  • doc/user/infrastructure/clusters/connect/new_gke_cluster.md
  • doc/user/project/deploy_boards.md

Who can address the issue

~"group::configure"

Edited by Marcia Ramos