Feat/node labels

[MiroslavRepka]

This PR adds default node labels as discussed. All labels are added via kubeone so the changes in our code are minimal.

All nodes will have labels

claudie.io/worker-node: # true or false
claudie.io/provider: # cloud provider name [hetzner, gcp, oci, ...]
claudie.io/provider-instance: # cloud provider instance [hetzner-1, gcp-1, gcp-2, ...]
claudie.io/nodepool: # nodepool name

topology.kubernetes.io/region: # region name
topology.kubernetes.io/zone: # zone name

The storage classes in longhorn are now configured based on cloud provider instance, instead of cloud provider as described in #472.
The topology labels also improve Longhorn scheduling as described in #425.

[Despire]

I see no issues, LGTM.