Fix FileTailingMessageProducerTests.testOS for MacOS

Signed-off-by: Jiandong Ma <jiandong.ma.cn@gmail.com>

spring-integration-file/src/test/java/org/springframework/integration/file/tail/FileTailingMessageProducerTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -87,6 +87,7 @@ public class FileTailingMessageProducerTests {
 	public void testOS() throws Exception {
 		OSDelegatingFileTailingMessageProducer adapter = new OSDelegatingFileTailingMessageProducer();
 		adapter.setOptions(TAIL_OPTIONS_FOLLOW_NAME_ALL_LINES);
+		adapter.setIdleEventInterval(1000);
 		testGuts(adapter, "stdOutReader");
 	}