fix(测试计划): 生成报告未排除已删除的用例

--bug=1041040 --user=宋昌昌 【测试计划】计划列表-复制计划-执行计划后生成报告-用例总数和用例明细比实际多-统计数据全部错误 https://www.tapd.cn/55049933/s/1519080

backend/services/test-plan/src/main/java/io/metersphere/plan/mapper/ExtTestPlanReportFunctionalCaseMapper.xml

@@ -9,7 +9,7 @@
         from test_plan_functional_case tpfc join functional_case fc on tpfc.functional_case_id = fc.id
         left join functional_case_module fcm on fcm.id = fc.module_id
         left join bug_relation_case brc on brc.test_plan_case_id = tpfc.id
-        where tpfc.test_plan_id = #{id}
+        where tpfc.test_plan_id = #{id} and fc.deleted = false
         group by tpfc.id
     </select>