Stop logging to the file used in the generated documentation

Closes gh-28488

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/endpoint/web/documentation/LogFileWebEndpointDocumentationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2021 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.
@@ -23,9 +23,8 @@ import org.springframework.boot.logging.LogFile;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Import;
-import org.springframework.core.env.Environment;
+import org.springframework.mock.env.MockEnvironment;
 import org.springframework.restdocs.mockmvc.MockMvcRestDocumentation;
-import org.springframework.test.context.TestPropertySource;
 
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
@@ -35,8 +34,6 @@ import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.
  *
  * @author Andy Wilkinson
  */
-@TestPropertySource(
-		properties = "logging.file.name=src/test/resources/org/springframework/boot/actuate/autoconfigure/endpoint/web/documentation/sample.log")
 class LogFileWebEndpointDocumentationTests extends MockMvcEndpointDocumentationTests {
 
 	@Test
@@ -56,7 +53,10 @@ class LogFileWebEndpointDocumentationTests extends MockMvcEndpointDocumentationT
 	static class TestConfiguration {
 
 		@Bean
-		LogFileWebEndpoint endpoint(Environment environment) {
+		LogFileWebEndpoint endpoint() {
+			MockEnvironment environment = new MockEnvironment();
+			environment.setProperty("logging.file.name",
+					"src/test/resources/org/springframework/boot/actuate/autoconfigure/endpoint/web/documentation/sample.log");
 			return new LogFileWebEndpoint(LogFile.get(environment), null);
 		}