feat: 컨슈머 리밸런스 발생시 처리 기능 구현

- 일단 로깅 및 Manual Commit만 진행

src/main/java/com/sangdol/consumer/infrastructure/kafka/consumer/RebalanceListener.java

@@ -0,0 +1,35 @@
+package com.sangdol.consumer.infrastructure.kafka.consumer;
+
+import java.util.Collection;
+
+import org.apache.kafka.clients.consumer.ConsumerRebalanceListener;
+import org.apache.kafka.clients.consumer.KafkaConsumer;
+import org.apache.kafka.common.TopicPartition;
+
+import com.sangdol.consumer.domain.TestRecord;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+@RequiredArgsConstructor
+public class RebalanceListener implements ConsumerRebalanceListener {
+
+	private final KafkaConsumer<String, TestRecord> consumer;
+
+	@Override
+	public void onPartitionsRevoked(Collection<TopicPartition> partitions) {
+		log.warn("[RebalanceListener] Partitions revoked for partitions {} ", partitions);
+		try {
+			consumer.commitSync();
+			log.info("[RebalanceListener] Offsets committed before partition revoked. partition: {}", partitions);
+		} catch (Exception e) {
+			log.error("[RebalanceListener] Failed to commit before partition revoked", e);
+		}
+	}
+
+	@Override
+	public void onPartitionsAssigned(Collection<TopicPartition> partitions) {
+		log.info("[RebalanceListener] Partitions assigned for partitions {} ", partitions);
+	}
+}