[v1.27] fix(hetzner): hostname label is not considered #6754
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The Node Group info we currently return does not include the `kubernetes.io/hostname` label, which is usually set on every node. This causes issues when the user has an unscheduled pod with a `topologySpreadConstraint` on `topologyKey: kubernetes.io/hostname`. cluster-autoscaler is unable to fulfill this constraint and does not scale up any of the node groups. Related to kubernetes#6715
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What type of PR is this?
/kind bug
/area provider/hetzner
What this PR does / why we need it:
The Node Group info we currently return does not include the
kubernetes.io/hostnamelabel, which is usually set on every node.This causes issues when the user has an unscheduled pod with a
topologySpreadConstraintontopologyKey: kubernetes.io/hostname. cluster-autoscaler is unable to fulfill this constraint and does not scale up any of the node groups.Backport of #6740 to v1.27 branch.
Which issue(s) this PR fixes:
Related to #6715
Special notes for your reviewer:
Does this PR introduce a user-facing change?
Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.: