Add deprecation notices for features impacted by SC-Deployer

spring-cloud-task-stream/src/main/java/org/springframework/cloud/task/launcher/TaskLaunchRequest.java

@@ -32,7 +32,10 @@ import org.springframework.util.StringUtils;
  * TaskLauncherSink to launch the task.
  *
  * @author Glenn Renfro
+ * @deprecated This feature is now end-of-life and will be removed in a future release. No
+ * replacement is planned. Please migrate away from using this functionality.
  */
+@Deprecated
 public class TaskLaunchRequest implements Serializable {
 
 	private static final long serialVersionUID = 1L;

spring-cloud-task-stream/src/main/java/org/springframework/cloud/task/launcher/TaskLauncherSink.java

@@ -35,8 +35,10 @@ import org.springframework.util.Assert;
  * A sink stream application that launches a tasks.
  *
  * @author Glenn Renfro
+ * @deprecated This feature is now end-of-life and will be removed in a future release. No
+ * replacement is planned. Please migrate away from using this functionality.
  */
-
+@Deprecated
 public class TaskLauncherSink {
 
 	private final static Logger logger = LoggerFactory.getLogger(TaskLauncherSink.class);

spring-cloud-task-stream/src/main/java/org/springframework/cloud/task/launcher/annotation/EnableTaskLauncher.java

@@ -50,12 +50,15 @@ import org.springframework.context.annotation.Import;
  * <code>&#064;EnableTaskLauncher</code> annotation.
  *
  * @author Glenn Renfro
+ * @deprecated This feature is now end-of-life and will be removed in a future release. No
+ * replacement is planned. Please migrate away from using this functionality.
  */
 @Target(ElementType.TYPE)
 @Retention(RetentionPolicy.RUNTIME)
 @Documented
 @Inherited
 @Import({ TaskLauncherSink.class })
+@Deprecated
 public @interface EnableTaskLauncher {
 
 }