Polish

See gh-42069

spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/build/BuildLog.java

@@ -118,6 +118,7 @@ public interface BuildLog {
 	 * Log that a cache cleanup step was not completed successfully.
 	 * @param cache the cache
 	 * @param exception any exception that caused the failure
+	 * @since 3.2.6
 	 */
 	void failedCleaningWorkDir(Cache cache, Exception exception);