Updates the instructions for the CRD snafu with Prometheus
- This is difficult to update since we are highly version dependant
- This ensures the next time we create a new cluster, installing Prometheus goes a little more smoothly
- CRD's are not managed by helm and therefore we must perform this work ourselves
There is no configuration change in the content of this MR, rather it's a documentation update. There should be no diffs associated with this work.
Addresses problems found during: https://gitlab.com/gitlab-com/gl-infra/infrastructure/-/issues/12720
Edited by John Skarbek