Replace explicit type with diamond operator

See gh-39259

Author: tobias-lippert

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/plugin/ApplicationPluginAction.java

@@ -130,7 +130,7 @@ private void configureFilePermissions(CopySpec copySpec, int mode) {
 		if (GradleVersion.current().compareTo(GradleVersion.version("8.3")) >= 0) {
 			try {
 				Method filePermissions = copySpec.getClass().getMethod("filePermissions", Action.class);
-				filePermissions.invoke(copySpec, new Action<Object>() {
+				filePermissions.invoke(copySpec, new Action<>() {
 
 					@Override
 					public void execute(Object filePermissions) {

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/servlet/DynamicRegistrationBeanTests.java

@@ -50,7 +50,7 @@ void shouldUseConventionBasedNameIfNoNameOrBeanNameIsSet() {
 	}
 
 	private static DynamicRegistrationBean<?> createBean() {
-		return new DynamicRegistrationBean<Dynamic>() {
+		return new DynamicRegistrationBean<>() {
 			@Override
 			protected Dynamic addRegistration(String description, ServletContext servletContext) {
 				return null;