No errors during e2e tests

[guettli]

/kind feature

During successful e2e tests there should be no errors in caph logs. Otherwise debugging failing e2e tests is harder, because you need to check if an error is a common error or a real error.

For example this is common, and should not be an error:

level: ERROR
time: "2025-04-02T14:15:09.777Z"
file: controller/controller.go:324
message: Reconciler error
controller: hetznerbaremetalhost
controllerGroup: infrastructure.cluster.x-k8s.io
controllerKind: HetznerBareMetalHost
HetznerBareMetalHost:
  name: bm-e2e-1670788
  namespace: ci14221626200-6nzn0m
namespace: ci14221626200-6nzn0m
name: bm-e2e-1670788
reconcileID: 4bac613e-5303-40dd-b5c3-d8ebed6b708e
error: 'failed to reconcile HetznerBareMetalHost ci14221626200-6nzn0m/bm-e2e-1670788: action "ensure-provisioned" failed: failed to get cloud init output: failed to dial ssh. Error message: dial tcp 136.243.69.167:22: connect: connection refused. DialErr: failed to dial ssh, while handling: failed to get cloud init status: failed to dial ssh. Error message: dial tcp 136.243.69.167:22: connect: connection refused. DialErr: failed to dial ssh'
stacktrace: |-
  sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler
  	sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:324
  sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem
  	sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:261
  sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2
  	sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:222