TUN-8685: Bump coredns dependency

Closes TUN-8685

vendor/github.com/gobwas/ws/wsutil/wsutil.go

@@ -3,54 +3,54 @@ Package wsutil provides utilities for working with WebSocket protocol.
 
 Overview:
 
-  // Read masked text message from peer and check utf8 encoding.
-  header, err := ws.ReadHeader(conn)
-  if err != nil {
-	  // handle err
-  }
+	// Read masked text message from peer and check utf8 encoding.
+	header, err := ws.ReadHeader(conn)
+	if err != nil {
+		// handle err
+	}
 
-  // Prepare to read payload.
-  r := io.LimitReader(conn, header.Length)
-  r = wsutil.NewCipherReader(r, header.Mask)
-  r = wsutil.NewUTF8Reader(r)
+	// Prepare to read payload.
+	r := io.LimitReader(conn, header.Length)
+	r = wsutil.NewCipherReader(r, header.Mask)
+	r = wsutil.NewUTF8Reader(r)
 
-  payload, err := ioutil.ReadAll(r)
-  if err != nil {
-	  // handle err
-  }
+	payload, err := ioutil.ReadAll(r)
+	if err != nil {
+		// handle err
+	}
 
 You could get the same behavior using just `wsutil.Reader`:
 
-  r := wsutil.Reader{
-	  Source:    conn,
-	  CheckUTF8: true,
-  }
+	r := wsutil.Reader{
+		Source:    conn,
+		CheckUTF8: true,
+	}
 
-  payload, err := ioutil.ReadAll(r)
-  if err != nil {
-	  // handle err
-  }
+	payload, err := ioutil.ReadAll(r)
+	if err != nil {
+		// handle err
+	}
 
 Or even simplest:
 
-  payload, err := wsutil.ReadClientText(conn)
-  if err != nil {
-	  // handle err
-  }
+	payload, err := wsutil.ReadClientText(conn)
+	if err != nil {
+		// handle err
+	}
 
 Package is also exports tools for buffered writing:
 
-  // Create buffered writer, that will buffer output bytes and send them as
-  // 128-length fragments (with exception on large writes, see the doc).
-  writer := wsutil.NewWriterSize(conn, ws.StateServerSide, ws.OpText, 128)
+	// Create buffered writer, that will buffer output bytes and send them as
+	// 128-length fragments (with exception on large writes, see the doc).
+	writer := wsutil.NewWriterSize(conn, ws.StateServerSide, ws.OpText, 128)
 
-  _, err := io.CopyN(writer, rand.Reader, 100)
-  if err == nil {
-	  err = writer.Flush()
-  }
-  if err != nil {
-	  // handle error
-  }
+	_, err := io.CopyN(writer, rand.Reader, 100)
+	if err == nil {
+		err = writer.Flush()
+	}
+	if err != nil {
+		// handle error
+	}
 
 For more utils and helpers see the documentation.
 */