Fix checkstyle

Author: loicgreffier

kafka-streams-quickstarts/kafka-streams-cogroup/src/main/java/io/github/loicgreffier/streams/cogroup/app/KafkaStreamsTopology.java

@@ -50,7 +50,8 @@ public static void topology(StreamsBuilder streamsBuilder) {
         groupedStreamOne
             .cogroup(aggregator)
             .cogroup(groupedStreamTwo, aggregator)
-            .aggregate(() -> new KafkaPersonGroup(new HashMap<>()), Materialized.as(PERSON_COGROUP_AGGREGATE_STATE_STORE))
+            .aggregate(() -> new KafkaPersonGroup(new HashMap<>()),
+                Materialized.as(PERSON_COGROUP_AGGREGATE_STATE_STORE))
             .toStream()
             .to(PERSON_COGROUP_TOPIC);
     }