fix typo (#2093)

dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/TaskProps.java

@@ -78,7 +78,7 @@ public class TaskProps {
   private Map<String, String> definedParams;
 
   /**
-   * task path
+   * task app id
    */
   private String taskAppId;