fix: add k8s client auth plugins

Fix and prevent errors like: Error: no Auth Provider found for name "oidc"

cmd/root.go

@@ -8,6 +8,7 @@ import (
 	"github.com/idebeijer/kubert/internal/config"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
+	_ "k8s.io/client-go/plugin/pkg/client/auth"
 )
 
 const (