Configure the bootBuildInfo task lazily

Prior to this commit, the bootBuildInfo was configured eagerly.
Configuring it lazily prevent this task from being configured when not explicitly needed.
Also, the 'classes' and 'bootJar' tasks are now lazily configured, as the bootBuildInfo task
required them eagerly.

Author: celcius112

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

@@ -96,16 +96,16 @@ public void buildInfo(Action<BuildInfo> configurer) {
 		TaskProvider<BuildInfo> bootBuildInfo = tasks.register("bootBuildInfo", BuildInfo.class,
 				this::configureBuildInfoTask);
 		this.project.getPlugins().withType(JavaPlugin.class, (plugin) -> {
-			tasks.getByName(JavaPlugin.CLASSES_TASK_NAME).dependsOn(bootBuildInfo.get());
-			this.project.afterEvaluate((evaluated) -> {
-				BuildInfoProperties properties = bootBuildInfo.get().getProperties();
+			tasks.named(JavaPlugin.CLASSES_TASK_NAME).configure((task) -> task.dependsOn(bootBuildInfo));
+			this.project.afterEvaluate((evaluated) -> bootBuildInfo.configure((buildInfo) -> {
+				BuildInfoProperties properties = buildInfo.getProperties();
 				if (properties.getArtifact() == null) {
 					properties.setArtifact(determineArtifactBaseName());
 				}
-			});
+			}));
 		});
 		if (configurer != null) {
-			configurer.execute(bootBuildInfo.get());
+			bootBuildInfo.configure(configurer);
 		}
 	}