[ci:component:github.com/gardener/machine-controller-manager:v0.50.1->v0.51.1]

[gardener-robot-ci-2]

Release Notes:

Bump `k8s.io/*` deps to `v0.28.2`

Phase transition diagram for a machine object is added to FAQs

machine controller won't reconcile machine on non-spec update events

fixed IT for seed with k8s >= 1.27 as control cluster 

Fix for edge case of Node object deletion missed during machine termination.

Change OCI Image Registry from GCR (`eu.gcr.io/gardener-project`) to Artifact-Registry (`europe-docker.pkg.dev/gardener-project/releases`). Users should update their references.

MCM restart happens properly in integration tests now. This fix will get activated, once this version is vendored in your mcm-provider

The default `machine-safety-orphan-vms-period` has been reduced from 30m to 15m.

Removes `node.machine.sapcloud.io/not-managed-by-mcm` annotation from nodes managed by the MCM.

[gardener-robot]

@gardener-robot-ci-2 Thank you for your contribution.