Revert program_id to string to enable seeing the hlo stats table.

PiperOrigin-RevId: 731948020

Author: zzzaries

tensorflow/core/profiler/convert/op_stats_to_hlo_stats.cc

@@ -142,7 +142,7 @@ std::unique_ptr<tensorflow::profiler::DataTable> CreateHloStatsDataTable(
   for (const HloStatsRecord& record : hlo_stats_db.hlo_stats_record()) {
     TableRow* row = data_table->AddRow();
     row->AddCell(record.rank());
-    row->AddCell(record.program_id());
+    row->AddCell(absl::StrCat(record.program_id()));
     row->AddCell(record.hlo_category());
     row->AddCell(GetHloOpNameFromExpression(record.hlo_expression()));
     row->AddCell(record.hlo_expression());