[gstg] Use the new ratelimiting-redis in k8s for gstg

This would mean changing the config in the charts: https://gitlab.com/gitlab-com/gl-infra/k8s-workloads/gitlab-com/blob/e32224597048e526980fefc094413e528443cf63/releases/gitlab/values/gstg.yaml.gotmpl#L990-1001

And in chef: https://gitlab.com/gitlab-com/gl-infra/chef-repo/blob/dbe79f3353c25752871e91a727f07b4690f276db/roles/gstg-base.json#L540-553

And try a QA run