oci.DaemonHost handle empty hostnames #10291

Job	Run time
build_minikube	13m 31s
build_minikube_test_binaries	8m 40s
lint	5m 13s
unit_test	3m 38s
functional_docker_ubuntu	9m 44s
functional_baremetal_ubuntu20_04	9m 32s
functional_docker_containerd_ubuntu	8m 40s
functional_docker_rootless_containerd_ubuntu	13m 25s
functional_podman_ubuntu	10m 50s
functional_virtualbox_macos	16m 45s
upload_all_reports	11s
	1h 40m 9s

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