k8s-infra: verify manifests for registry.k8s.io
k8s-infra: verify manifests for registry.k8s.io

Related:
  - https://github.com/kubernetes/k8s.io/issues/3411

Verify the manifests lists registry.k8s.io in replacement of k8s.gcr.io

See: https://groups.google.com/d/msgid/kubernetes-sig-testing/CANw6fcFgKaCLLiuY_8TBp%3DKWROHZbuj1FYWAfyGW6XOQ%3D_nLUA%40mail.gmail.com?utm_medium=email&utm_source=footer

Signed-off-by: Arnaud Meukam <96190fcd0798f0afa72279990e31ddc33e4f2ea2@gmail.com>

kubernetes/kubeadm,kubernetes/kubeadm