fix: 测试计划关联的用例显示不完整

--bug=1009569 --user=陈建星 【测试跟踪】测试计划列表和脑图显示的用例不一样 https://www.tapd.cn/55049933/s/10913111

backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanTestCaseMapper.xml

@@ -171,7 +171,7 @@
             <if test="request.method != null">
                 and test_case.method = #{request.method}
             </if>
-            and test_case.status != 'Trash'
+            and (test_case.status != 'Trash' or test_case.status is null)
             <include refid="filter"/>
         </where>
     </sql>