fix bug:delete the user ,the project list of admin will lost the projects of...

fix bug:delete the user ,the project list of admin will lost the projects of this user #5301 (#5302)

dolphinscheduler-dao/src/main/resources/org/apache/dolphinscheduler/dao/mapper/ProjectMapper.xml

@@ -59,7 +59,7 @@
         (SELECT COUNT(*) FROM t_ds_process_definition def, t_ds_process_instance inst WHERE def.id =
         inst.process_definition_id AND def.project_id = p.id AND inst.state=1 ) as inst_running_count
         from t_ds_project p
-        join t_ds_user u on u.id=p.user_id
+        left join t_ds_user u on u.id=p.user_id
         where 1=1
         <if test="userId != 0">
             and p.id in