ClusterRole artillery-operator-manager-role requires get list watch on configmaps across the cluster

[justinfiore]

When I tried to run the hack/examples/basic-test-cr Load Test, it could not execute because the operator couldn't read configmaps.

I added:
configmaps with get, list, watch to the artillery-operator-manager-role ClusterRole and it was able to proceed.
I don't know if all 3 of those permissions are needed or only a subset.