top10: 1.2.0 - Switched the message-key from `String` to `User`

[demos/kafka/wordcount] / src / main / java / de / juplo / kafka / wordcount / top10 / User.java

package de.juplo.kafka.wordcount.top10;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;


@AllArgsConstructor(staticName = "of")
@NoArgsConstructor
@Data
public class User
{
  String user;
}