fix(测试跟踪): 修复测试计划报告内，未执行的场景图标没有统计的问题

--bug=1020025 --user=宋天阳 【测试跟踪】github#19879，Unexecuted场景用例在Test
Result图表里没有被统计显示等问题2个 https://www.tapd.cn/55049933/s/1301229

backend/src/main/java/io/metersphere/commons/utils/TestPlanUtils.java

@@ -52,6 +52,7 @@ public class TestPlanUtils {
         addToReportStatusResultList(resultMap, statusResult, "Success");
         addToReportStatusResultList(resultMap, statusResult, "SUCCESS");
         addToReportStatusResultList(resultMap, statusResult, "STOP");
+        addToReportStatusResultList(resultMap, statusResult, "unexecute");
         addToReportStatusResultList(resultMap, statusResult, TestPlanTestCaseStatus.Prepare.name());
         addToReportStatusResultList(resultMap, statusResult, ExecuteResult.ERROR_REPORT_RESULT.toString());
     }