[Fix][UI Next][V1.0.0-Alpha]Fix the pagination of task instance table always one page. (#8954)

dolphinscheduler-ui-next/src/views/projects/task/instance/use-table.ts

@@ -287,6 +287,7 @@ export function useTable() {
               ...item
             }
           }) as any
+          variables.totalPage = res.totalPage
         }
       ),
       {}