Upgrade to Logback 1.5.8

Closes gh-42257

spring-boot-project/spring-boot-dependencies/build.gradle

@@ -1121,7 +1121,7 @@ bom {
 			releaseNotes("https://github.com/apache/logging-log4j2/releases/tag/rel%2F{version}")
 		}
 	}
-	library("Logback", "1.5.7") {
+	library("Logback", "1.5.8") {
 		group("ch.qos.logback") {
 			modules = [
 				"logback-classic",

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/logging/logback/LogbackLoggingSystemTests.java

@@ -646,7 +646,7 @@ class LogbackLoggingSystemTests extends AbstractLoggingSystemTests {
 			LogFile logFile = getLogFile(file.getPath(), null);
 			initialize(this.initializationContext, null, logFile);
 			assertThat(output).contains("LevelChangePropagator")
-				.contains("SizeAndTimeBasedFNATP")
+				.contains("SizeAndTimeBasedFileNamingAndTriggeringPolicy")
 				.contains("DebugLogbackConfigurator");
 		}
 		finally {