fix(接口测试): 任务ID重复

--bug=1048118 --user=陈建星 【组织任务中心】即时任务列表-点击ID进入任务详情-展示了同id的其它子任务 https://www.tapd.cn/55049933/s/1598879

backend/services/api-test/src/main/java/io/metersphere/api/service/ApiCommonService.java

@@ -483,7 +483,7 @@ public class ApiCommonService {
 
     public ExecTask newExecTask(String projectId, String userId) {
         ExecTask execTask = new ExecTask();
-        execTask.setNum(NumGenerator.nextNum(projectId, ApplicationNumScope.TASK));
+        execTask.setNum(NumGenerator.nextNum(ApplicationNumScope.TASK));
         execTask.setProjectId(projectId);
         execTask.setId(IDGenerator.nextStr());
         execTask.setCreateTime(System.currentTimeMillis());

backend/services/system-setting/src/main/java/io/metersphere/system/uid/NumGenerator.java

@@ -27,6 +27,10 @@ public class NumGenerator {
 
     private static final List<ApplicationNumScope> SUB_NUM = List.of(ApplicationNumScope.API_TEST_CASE, ApplicationNumScope.API_MOCK, ApplicationNumScope.TEST_PLAN_FUNCTION_CASE, ApplicationNumScope.TEST_PLAN_API_CASE, ApplicationNumScope.TEST_PLAN_API_SCENARIO);
 
+    public static long nextNum(ApplicationNumScope scope) {
+        return nextNum(scope.name(), scope);
+    }
+
     /**
      * @param prefix 前缀: PROJECT_ID, 或者 PROJECT_ID + "_" + DOMAIN 例如接口用例的前缀为: 100001_12345
      * @param scope  用例类型