Close TaskScheduler in tests

* Add `@DirtiesContext` to some tests where `TaskScheduler` is used

spring-integration-xml/src/test/java/org/springframework/integration/xml/config/DefaultConfigurationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2024 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.
@@ -28,6 +28,7 @@ import org.springframework.integration.context.IntegrationContextUtils;
 import org.springframework.integration.test.util.TestUtils;
 import org.springframework.messaging.MessageChannel;
 import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
+import org.springframework.test.annotation.DirtiesContext;
 import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
 import org.springframework.util.ErrorHandler;
 
@@ -41,6 +42,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  * @since 1.0.3
  */
 @SpringJUnitConfig
+@DirtiesContext
 public class DefaultConfigurationTests {
 
 	@Autowired