update vendor

Signed-off-by: Roland.Ma <rolandma@yunify.com>

vendor/k8s.io/apimachinery/pkg/runtime/serializer/protobuf/protobuf.go

@@ -61,6 +61,7 @@ func (e errNotMarshalable) Status() metav1.Status {
 	}
 }
 
+// IsNotMarshalable checks the type of error, returns a boolean true if error is not nil and not marshalable false otherwise
 func IsNotMarshalable(err error) bool {
 	_, ok := err.(errNotMarshalable)
 	return err != nil && ok
@@ -77,6 +78,7 @@ func NewSerializer(creater runtime.ObjectCreater, typer runtime.ObjectTyper) *Se
 	}
 }
 
+// Serializer handles encoding versioned objects into the proper wire form
 type Serializer struct {
 	prefix  []byte
 	creater runtime.ObjectCreater
@@ -118,7 +120,7 @@ func (s *Serializer) Decode(originalData []byte, gvk *schema.GroupVersionKind, i
 
 	if intoUnknown, ok := into.(*runtime.Unknown); ok && intoUnknown != nil {
 		*intoUnknown = unk
-		if ok, _, _ := s.RecognizesData(bytes.NewBuffer(unk.Raw)); ok {
+		if ok, _, _ := s.RecognizesData(unk.Raw); ok {
 			intoUnknown.ContentType = runtime.ContentTypeProtobuf
 		}
 		return intoUnknown, &actual, nil
@@ -243,19 +245,8 @@ func (s *Serializer) Identifier() runtime.Identifier {
 }
 
 // RecognizesData implements the RecognizingDecoder interface.
-func (s *Serializer) RecognizesData(peek io.Reader) (bool, bool, error) {
-	prefix := make([]byte, 4)
-	n, err := peek.Read(prefix)
-	if err != nil {
-		if err == io.EOF {
-			return false, false, nil
-		}
-		return false, false, err
-	}
-	if n != 4 {
-		return false, false, nil
-	}
-	return bytes.Equal(s.prefix, prefix), false, nil
+func (s *Serializer) RecognizesData(data []byte) (bool, bool, error) {
+	return bytes.HasPrefix(data, s.prefix), false, nil
 }
 
 // copyKindDefaults defaults dst to the value in src if dst does not have a value set.
@@ -457,8 +448,10 @@ func (s *RawSerializer) Identifier() runtime.Identifier {
 	return rawSerializerIdentifier
 }
 
+// LengthDelimitedFramer is exported variable of type lengthDelimitedFramer
 var LengthDelimitedFramer = lengthDelimitedFramer{}
 
+// Provides length delimited frame reader and writer methods
 type lengthDelimitedFramer struct{}
 
 // NewFrameWriter implements stream framing for this serializer