update vendor

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

vendor/k8s.io/client-go/tools/remotecommand/remotecommand.go

@@ -22,7 +22,7 @@ import (
 	"net/http"
 	"net/url"
 
-	"k8s.io/klog"
+	"k8s.io/klog/v2"
 
 	"k8s.io/apimachinery/pkg/util/httpstream"
 	"k8s.io/apimachinery/pkg/util/remotecommand"

vendor/k8s.io/client-go/tools/remotecommand/v1.go

@@ -24,7 +24,7 @@ import (
 
 	"k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/util/httpstream"
-	"k8s.io/klog"
+	"k8s.io/klog/v2"
 )
 
 // streamProtocolV1 implements the first version of the streaming exec & attach

vendor/k8s.io/client-go/tools/remotecommand/v2.go

@@ -142,6 +142,10 @@ func (p *streamProtocolV2) copyStdout(wg *sync.WaitGroup) {
 	go func() {
 		defer runtime.HandleCrash()
 		defer wg.Done()
+		// make sure, packet in queue can be consumed.
+		// block in queue may lead to deadlock in conn.server
+		// issue: https://github.com/kubernetes/kubernetes/issues/96339
+		defer io.Copy(ioutil.Discard, p.remoteStdout)
 
 		if _, err := io.Copy(p.Stdout, p.remoteStdout); err != nil {
 			runtime.HandleError(err)
@@ -158,6 +162,7 @@ func (p *streamProtocolV2) copyStderr(wg *sync.WaitGroup) {
 	go func() {
 		defer runtime.HandleCrash()
 		defer wg.Done()
+		defer io.Copy(ioutil.Discard, p.remoteStderr)
 
 		if _, err := io.Copy(p.Stderr, p.remoteStderr); err != nil {
 			runtime.HandleError(err)