Fix and update the GKE clusters in CI
- Fix the GCP project for the GKE cluster
staging-ref
- Add missing GKE clusters for
ops-central
,db-benchmarking
andstgsub-ref
- Fix some of the dependency issues I noticed in
ops
Part of https://gitlab.com/gitlab-com/gl-infra/reliability/-/issues/17505 and https://gitlab.com/gitlab-com/gl-infra/reliability/-/issues/16689