Update KubeConfig Loader with Auth Import

This provides clients running locally with authentication plugin support.

pkg/kubeconfig/loader.go

@@ -2,6 +2,7 @@ package kubeconfig
 
 import (
 	"k8s.io/client-go/kubernetes"
+	_ "k8s.io/client-go/plugin/pkg/client/auth"
 	"k8s.io/client-go/rest"
 	"k8s.io/client-go/tools/clientcmd"
 )