refactor(test/spring-kafka-example): rename KafkaProducerServiceImplTest package for better organization

Author: igorcampos-dev

…xample/KafkaProducerServiceImplTest.java …oducer/KafkaProducerServiceImplTest.javaspring-kafka-example/src/test/java/com/io/example/KafkaProducerServiceImplTest.java renamed to spring-kafka-example/src/test/java/com/io/example/producer/KafkaProducerServiceImplTest.java spring-kafka-example/src/test/java/com/io/example/KafkaProducerServiceImplTest.java renamed to spring-kafka-example/src/test/java/com/io/example/producer/KafkaProducerServiceImplTest.java

@@ -1,8 +1,7 @@
-package com.io.example;
+package com.io.example.producer;
 
 import com.io.example.controller.dto.request.MessageRequestDtoRequest;
 import com.io.example.mapper.JsonMapper;
-import com.io.example.producer.KafkaProducerServiceImpl;
 import org.apache.kafka.clients.consumer.ConsumerRecord;
 import org.apache.kafka.clients.consumer.ConsumerRecords;
 import org.apache.kafka.clients.consumer.KafkaConsumer;