Edit labels to nginx kubeconfig labelselectors for hpaSelector
For issue gitlab-com/gl-infra/delivery#2241 (closed) to label nginx resources
With this MR, the TODO comment of NGINX HPA is incorrectly labelled at present
is addressed. It was changed to reflect these MR changes: gitlab-com/gl-infra/k8s-workloads/gitlab-com!1540 (diffs)