Update RBAC in Azure examples to include csinodes permission

[amodm]

This PR fixes the Azure examples to include csinodes permission - same as what #2404 did for AWS. The issued faced is as follows:

Info

Component: cluster-autoscaler
Version: v1.16.1

Problem

Upon deploying cluster-autoscaler in Azure, I started receiving these errors every second:

E1025 08:23:39.529366 1 reflector.go:123] k8s.io/client-go/informers/factory.go:134: Failed to list *v1beta1.CSINode: csinodes.storage.k8s.io is forbidden: User "system:serviceaccount:kube-system:cluster-autoscaler" cannot list resource "csinodes" in API group "storage.k8s.io" at the cluster scope

Solution

Include csinodes in the list of resources under apiGroup storage.k8s.io of ClusterRole cluster-autoscaler:

# ...
- apiGroups: ["storage.k8s.io"]
    resources: ["storageclasses", "csinodes"]
# ...

PR #2404 fixed the examples only for AWS, while the issue exists for Azure (and likely other providers as well). This one fixes for Azure, and has been tested on it.

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[feiskyer]

/lgtm
/approve

Thanks for the fix

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