Use role to copy CNI bin (#5953)

roles/kubernetes-apps/network_plugin/cni/tasks/main.yml

roles/kubernetes-apps/network_plugin/meta/main.yml

roles/network_plugin/cilium/meta/main.yml

roles/network_plugin/cilium/tasks/main.yml

roles/network_plugin/cloud/tasks/main.yml

roles/network_plugin/cni/tasks/main.yml

roles/network_plugin/contiv/meta/main.yml

roles/network_plugin/contiv/tasks/main.yml

roles/network_plugin/flannel/meta/main.yml

roles/network_plugin/flannel/tasks/main.yml

roles/network_plugin/kube-router/meta/main.yml

roles/network_plugin/kube-router/tasks/main.yml

roles/network_plugin/macvlan/meta/main.yml

roles/network_plugin/macvlan/tasks/main.yml

roles/network_plugin/meta/main.yml

roles/network_plugin/weave/meta/main.yml

roles/network_plugin/weave/tasks/main.yml