Add environment and cluster to kiali fqdn

What

The change adds environment and cluster to the kiali fully qualified domain name (FQDN). This change will make the FQDN more descriptive and easier to understand.

Diff:

► VirtualService/istio-system/kiali drifted

metadata.annotations.external-dns.alpha.kubernetes.io/hostname
  ± value change
    - kiali.pre-gitlab-gke.gke.gitlab.net.
    + kiali.pre-gitlab-gke.pre.gke.gitlab.net

metadata.generation
  ± value change
    - 3
    + 4

metadata.labels.kustomize.toolkit.fluxcd.io/name
  ± value change
    - flux-components-kiali
    + flux-components-oauth2-proxy

spec.hosts.0
  ± value change
    - kiali.pre-gitlab-gke.gke.gitlab.net
    + kiali.pre-gitlab-gke.pre.gke.gitlab.net

Why

Related Issue: https://gitlab.com/gitlab-com/gl-infra/reliability/-/issues/24157