Update kubernetes projects version in vendor to 1.12.1

vendor/github.com/modern-go/reflect2/unsafe_eface.go

@@ -1,8 +1,8 @@
 package reflect2
 
 import (
-	"unsafe"
 	"reflect"
+	"unsafe"
 )
 
 type eface struct {
@@ -56,4 +56,4 @@ func (type2 *UnsafeEFaceType) Indirect(obj interface{}) interface{} {
 
 func (type2 *UnsafeEFaceType) UnsafeIndirect(ptr unsafe.Pointer) interface{} {
 	return *(*interface{})(ptr)
-}
+}