chore: code format

Author: loupipalien

seatunnel-e2e/seatunnel-connector-v2-e2e/connector-milvus-e2e/src/test/java/org/apache/seatunnel/e2e/connector/v2/milvus/MilvusIT.java

@@ -85,7 +85,6 @@
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
-import java.util.concurrent.ThreadLocalRandom;
 import java.util.concurrent.TimeUnit;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;