PodSecurityPolicy removed from K8s 1.25

[ramessesii2]

Description

PodSecurityPolicy which was initially deprecated with K8s 1.21 has now been completely removed with K8s 1.25.

What's next

Now, Namespaces can be labeled to enforce the Pod Security Standards. The three policies privileged, baseline and restricted broadly cover the security spectrum and are implemented by the Pod Security admission controller.

Proposal

To be able to successfully transition to K8s 1.25 (#457), we'll need to make changes accordingly to this repo. I'm not sure if there are already plans for it. If so, please add the research/info here and if no one else is looking into it, I can take on it.