fix bug: Fix master task dependency check bug (#3473)

Co-authored-by: lenboo <baoliang@analysys.com.cn>

dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/runner/MasterExecThread.java

@@ -667,12 +667,10 @@ public class MasterExecThread implements Runnable {
         List<String> depNameList = taskNode.getDepList();
         for(String depsNode : depNameList ){
             if(!dag.containsNode(depsNode)
+                    || skipTaskNodeList.containsKey(depsNode)
                     || forbiddenTaskList.containsKey(depsNode)){
                 continue;
             }
-            if(skipTaskNodeList.containsKey(depsNode)){
-                return DependResult.FAILED;
-            }
             // all the dependencies must be completed
             if(!completeTaskList.containsKey(depsNode)){
                 return DependResult.WAITING;