fix(测试计划): 修复测试计划发送通知时未执行状态没有统计数的问题

--bug=1021840 --user=刘瑞斌 【测试计划】测试计划定时任务通知，场景数量统计错误 https://www.tapd.cn/55049933/s/1325941

test-track/backend/src/main/java/io/metersphere/plan/service/TestPlanMessageService.java

@@ -323,6 +323,7 @@ public class TestPlanMessageService {
                         result.put("apiScenarioFailedCount", v);
                         break;
                     case "unexecute":
+                    case "pending":
                         result.put("apiScenarioUnExecuteCount", v);
                         break;
                     case "errorreportresult":
@@ -351,6 +352,7 @@ public class TestPlanMessageService {
                         break;
                     case "unexecute":
                     case "stop":
+                    case "pending":
                         result.put("uiScenarioUnExecuteCount", v);
                         break;
                     default: