fix(测试跟踪): 测试计划报告缺陷状态统计不准确

--bug=1017579 --user=陈建星 【测试跟踪】github#18335，测试计划内用例“添加缺陷”的缺陷状态统计不正确，“关联缺陷”的缺陷数量统计不正确 https://www.tapd.cn/55049933/s/1283110

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

@@ -821,6 +821,7 @@ public class IssuesService {
 
     public void calculatePlanReport(String planId, TestPlanSimpleReportDTO report) {
         List<PlanReportIssueDTO> planReportIssueDTOS = extIssuesMapper.selectForPlanReport(planId);
+        planReportIssueDTOS = DistinctKeyUtil.distinctByKey(planReportIssueDTOS, PlanReportIssueDTO::getId);
         TestPlanFunctionResultReportDTO functionResult = report.getFunctionResult();
         List<TestCaseReportStatusResultDTO> statusResult = new ArrayList<>();
         Map<String, TestCaseReportStatusResultDTO> statusResultMap = new HashMap<>();