Introduce compile error

... deliberately, to test whetehr our slack hook
still works and sends messages about build failures from
the pipeline.

headless-services/concourse-language-server/src/main/java/org/springframework/ide/vscode/concourse/ConcourseLanguageServerBootApp.java

@@ -26,6 +26,8 @@ import org.springframework.ide.vscode.concourse.github.GithubInfoProvider;
 
 @SpringBootApplication
 public class ConcourseLanguageServerBootApp {
+	
+	deliberate-error 
 
 	private static final String SERVER_NAME = "concourse-language-server";