NettyDataBufferFactory.wrap(ByteBuf) calls touch()

Closes gh-21960

spring-core/src/main/java/org/springframework/core/io/buffer/NettyDataBufferFactory.java

@@ -90,6 +90,7 @@ public class NettyDataBufferFactory implements DataBufferFactory {
 	 * @return the wrapped buffer
 	 */
 	public NettyDataBuffer wrap(ByteBuf byteBuf) {
+		byteBuf.touch();
 		return new NettyDataBuffer(byteBuf, this);
 	}