Account for new loggers property in FlywayPropertiesTets

See gh-35158

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/flyway/FlywayPropertiesTests.java

@@ -95,6 +95,12 @@ class FlywayPropertiesTests {
 		assertThat(properties.isExecuteInTransaction()).isEqualTo(configuration.isExecuteInTransaction());
 	}
 
+	@Test
+	void loggersIsOverriddenToSlf4j() {
+		assertThat(new FluentConfiguration().getLoggers()).containsExactly("auto");
+		assertThat(new FlywayProperties().getLoggers()).containsExactly("slf4j");
+	}
+
 	@Test
 	void expectedPropertiesAreManaged() {
 		Map<String, PropertyDescriptor> properties = indexProperties(
@@ -109,8 +115,8 @@ class FlywayPropertiesTests {
 		ignoreProperties(configuration, "callbacks", "classLoader", "dataSource", "javaMigrations",
 				"javaMigrationClassProvider", "pluginRegister", "resourceProvider", "resolvers");
 		// Properties we don't want to expose
-		ignoreProperties(configuration, "resolversAsClassNames", "callbacksAsClassNames", "loggers", "driver",
+		ignoreProperties(configuration, "resolversAsClassNames", "callbacksAsClassNames", "driver", "modernConfig",
-				"modernConfig", "currentResolvedEnvironment", "reportFilename");
+				"currentResolvedEnvironment", "reportFilename");
 		// Handled by the conversion service
 		ignoreProperties(configuration, "baselineVersionAsString", "encodingAsString", "locationsAsStrings",
 				"targetAsString");