[MINOR] Fix some code style issues based on check-style plugin (#4532)

Co-authored-by: yuezhang <yuezhang@freewheel.tv>

hudi-sync/hudi-hive-sync/src/test/java/org/apache/hudi/hive/TestMultiPartKeysValueExtractor.java

@@ -21,6 +21,7 @@ package org.apache.hudi.hive;
 import java.util.ArrayList;
 import java.util.List;
 import org.junit.jupiter.api.Test;
+
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class TestMultiPartKeysValueExtractor {