Make sure that AKS and EKS rbac match for tenants when they should

[NissesSenap]

We have written RBAC rules in AKS that we have forgotten to add to EKS and the this causes issues for our end-users when we say that they should be able to do something but they can't.

A good example of this is:

• https://github.com/XenitAB/terraform-modules/pull/560
• https://github.com/XenitAB/terraform-modules/pull/823

Could we write a script to make sure that this don't happen. Or could another option be to write troubelshooting guides in our docs and automatically run those steps in our e2e tests.

[NissesSenap]

It would probably be easier to work on something like this after we have migrated our management of our kubernetes helm charts to be managed by flux instead.

This way we don't have to write some script to parse a bunch of hcl that we probably will remove in the long run.