fix(测试跟踪): 统计用例数量不一致

--bug=1009939 --user=王孝刚 【公共用例库】-统计用例数量不一致
https://www.tapd.cn/55049933/s/1097706

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

@@ -956,7 +956,7 @@
             from project
             where workspace_id = #{workSpaceId})
           and case_public = true
-          and status != 'Trash'
+          and (test_case.status != 'Trash' or test_case.status is NULL)
     </select>
 
     <select id="trashCount" resultType="java.lang.Long">