Revert "Mute ydb/core/statistics/service/ut/ 1 tests" (#10024)

Author: andrewstalin

.github/config/muted_ya.txt

@@ -218,4 +218,3 @@ ydb/core/tx/schemeshard/ut_pq_reboots TPqGroupTestReboots.CreateMultiplePqTablet
 ydb/tests/functional/serializable test.py.test_local
 ydb/core/blobstorage/ut_vdisk TBsVDiskGC.GCPutKeepBarrierSync
 ydb/core/blobstorage/ut_vdisk TBsVDiskManyPutGet.ManyPutRangeGetCompactionIndexOnly
-ydb/core/statistics/service/ut StatisticsService.ChildNodesShouldBeInvalidateByTimeout