update vendor directory

vendor/github.com/lucas-clemente/quic-go/buffer_pool.go

@@ -3,25 +3,25 @@ package quic
 import (
 	"sync"
 
+	"v2ray.com/core/common/bytespool"
+
 	"github.com/lucas-clemente/quic-go/internal/protocol"
 )
 
-var bufferPool sync.Pool
+var bufferPool *sync.Pool
 
 func getPacketBuffer() *[]byte {
-	return bufferPool.Get().(*[]byte)
+	b := bufferPool.Get().([]byte)
+	return &b
 }
 
 func putPacketBuffer(buf *[]byte) {
-	if cap(*buf) != int(protocol.MaxReceivePacketSize) {
+	if cap(*buf) < int(protocol.MaxReceivePacketSize) {
 		panic("putPacketBuffer called with packet of wrong size!")
 	}
-	bufferPool.Put(buf)
+	bufferPool.Put(*buf)
 }
 
 func init() {
-	bufferPool.New = func() interface{} {
+	bufferPool = bytespool.GetPool(protocol.MaxReceivePacketSize)
-		b := make([]byte, 0, protocol.MaxReceivePacketSize)
-		return &b
-	}
 }