reduce logging rate for stats info (#8683)

Author: ivanmorozov333

ydb/core/tx/schemeshard/schemeshard__table_stats.cpp

@@ -323,7 +323,7 @@ bool TTxStoreTableStats::PersistSingleStats(const TPathId& pathId,
             const TPathId tablePathId = TPathId(TOwnerId(pathId.OwnerId), TLocalPathId(table.GetTableLocalId()));
 
             if (Self->ColumnTables.contains(tablePathId)) {
-                LOG_DEBUG_S(ctx, NKikimrServices::FLAT_TX_SCHEMESHARD,
+                LOG_TRACE_S(ctx, NKikimrServices::FLAT_TX_SCHEMESHARD,
                             "add stats for exists table with pathId=" << tablePathId);
 
                 auto columnTable = Self->ColumnTables.TakeVerified(tablePathId);