Fix Checkstyle violation for imports order

Author: artembilan

spring-rabbit/src/main/java/org/springframework/amqp/rabbit/listener/adapter/MessagingMessageListenerAdapter.java

@@ -24,8 +24,6 @@
 import java.util.List;
 import java.util.Optional;
 
-import com.rabbitmq.client.Channel;
-
 import org.springframework.amqp.core.MessageProperties;
 import org.springframework.amqp.rabbit.listener.api.RabbitListenerErrorHandler;
 import org.springframework.amqp.rabbit.support.ListenerExecutionFailedException;
@@ -47,6 +45,8 @@
 import org.springframework.util.Assert;
 import org.springframework.util.TypeUtils;
 
+import com.rabbitmq.client.Channel;
+
 /**
  * A {@link org.springframework.amqp.core.MessageListener MessageListener}
  * adapter that invokes a configurable {@link HandlerAdapter}.