Add cluster roles & rolebindings

[radu-catalina]

Add missing cluster roles and rolebindings to fix:

E1020 11:46:07.519618       1 reflector.go:148] pkg/mod/k8s.io/client-go@v0.27.2/tools/cache/reflector.go:231: Failed to watch *v1.Cluster: failed to list *v1.Cluster: clusters.registry.ethos.adobe.com is forbidden: User "system:serviceaccount:cluster-registry:cluster-registry-client" cannot list resource "clusters" in API group "registry.ethos.adobe.com" at the cluster scope

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[palasanu]

/lgtm

[adriananeci]

Should we remove https://github.com/adobe/cluster-registry/blob/main/charts/cluster-registry-client/templates/role.yaml and https://github.com/adobe/cluster-registry/blob/main/charts/cluster-registry-client/templates/rolebinding.yaml now that a cluster role was added?