Support deploying GitLab on Kubernetes 1.27
## Summary
As part of the [Kubernetes 1.27 release](https://kubernetes.io/blog/2023/04/11/kubernetes-v1-27-release/), we'll need to make sure our Charts and Operator can successfully deploy GitLab at this new version.
_For Kubernetes 1.26, see https://gitlab.com/groups/gitlab-org/-/epics/10785._
epic