Upgrade to Checkstyle 10.12.7

buildSrc/src/main/java/org/springframework/build/CheckstyleConventions.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.
@@ -50,12 +50,12 @@ public class CheckstyleConventions {
 			project.getPlugins().apply(CheckstylePlugin.class);
 			project.getTasks().withType(Checkstyle.class).forEach(checkstyle -> checkstyle.getMaxHeapSize().set("1g"));
 			CheckstyleExtension checkstyle = project.getExtensions().getByType(CheckstyleExtension.class);
-			checkstyle.setToolVersion("10.12.5");
+			checkstyle.setToolVersion("10.12.7");
 			checkstyle.getConfigDirectory().set(project.getRootProject().file("src/checkstyle"));
 			String version = SpringJavaFormatPlugin.class.getPackage().getImplementationVersion();
 			DependencySet checkstyleDependencies = project.getConfigurations().getByName("checkstyle").getDependencies();
-			checkstyleDependencies
+			checkstyleDependencies.add(
-				.add(project.getDependencies().create("io.spring.javaformat:spring-javaformat-checkstyle:" + version));
+					project.getDependencies().create("io.spring.javaformat:spring-javaformat-checkstyle:" + version));
 		});
 	}