Migrate CHSRC v0.1 services to GitOps

• Continue from https://jira.skatelescope.org/projects/SP/issues/SP-4333

This feature is to consolidate our dev and prod cluster.

See dev, prod cluster panels and v0.1 panels on miro board https://miro.com/app/board/uXjVK55UYPc=/ 

• Migrate repo to this subgroup https://gitlab.com/ska-telescope/src/deployments 
• Make dev branch and have the argo deployment on dev cluster track this branch
• Verify and Demo
• Deploy ArgoCD on prod
• Deploy on Prod secrets manually (k8s secrets or Vault) ahead of deploying services
• Demo prod cluster
• Document procedures for updating deployments across dev and prod in practice
• ...

• • setup prod cluster with kustomize setup with overlay

• Documentation to be shared
  • App deployment documentation to be created in the CHSRC IaC Gitlab repo, to be built as a Gitlab pages project. The documentation intends to describe how to deploy applications relevant for and supporting SRCNet using ArgoCD. This ArgoCD-specific documentation can then be linked to from the centralized ops documentation. CHSRC operations notes can be added as a separate section that can be ignored by other SRCs.
  • Continued documentation for the centralized ops documentation for the GitOps part for each application we migrate (deployment instructions).

Some documentation may need to be moved over from CSCS confluence.