For AddOns and KubeadmPhase the last revision reference has been removed
in favor of the md5 hash: this has been required since some information
required for the comparison is not persisted in the admin cluster.
With this change, the CRD definition has changed too, making this change
breaking, although still in v1alpha1.
Removing the field tcp.spec.networkProfile.domain in favor of the
tcp.spec.networkProfile.certSANs which allows specifying additional
extra domains that could be used to reach out to the tenant control
plane.