The minReadySeconds field on StatefulSet specifies the minimum
number of seconds for which a newly created Pod should be
ready without any of its containers crashing, for it to
be considered available. The AvailableReplicas field
in the status reflects the replicas that are available

When the StatefulSetMinReadySeconds feature gate is disabled,
the registry and validation must properly handle dropping the
minReadySeconds and AvailableReplicas fields