unstable test TestStmtSummaryHistoryTableOther

## Bug Report

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### 1. Minimal reproduce step (Required)

### 2. What did you expect to see? (Required)

### 3. What did you see instead (Required)

```
Error Trace: testkit/result.go:49
util/stmtsummary/v2/tests/table_test.go:445
Error: Not equal:
expected: "[show databases 0e247706bf6e791fbf4af8c8e7658af5ffc45c63179871202d8f91551ee03161]\n[ ]\n"
actual : "[show databases 0e247706bf6e791fbf4af8c8e7658af5ffc45c63179871202d8f91551ee03161]\n[ ]\n[set global `tidb_stmt_summary_max_stmt_count` = ? 7a4303ed465d64904ae45ac584cee2783445306666af29ae64cdec3d2c6e30fb]\n[select `schema_name` from `information_schema` . `statements_summary` 52572c1d73d02eba64da8c15e8902f2f6c610505b6d016bcd6522f638815ba58]\n"

Diff:
--- Expected
+++ Actual
@@ -2,2 +2,4 @@
[ ]
+[set global `tidb_stmt_summary_max_stmt_count` = ? 7a4303ed465d64904ae45ac584cee2783445306666af29ae64cdec3d2c6e30fb]
+[select `schema_name` from `information_schema` . `statements_summary` 52572c1d73d02eba64da8c15e8902f2f6c610505b6d016bcd6522f638815ba58]

Test: TestStmtSummaryHistoryTableOther
Messages: sql:SELECT DIGEST_TEXT, DIGEST FROM `INFORMATION_SCHEMA`.`STATEMENTS_SUMMARY_HISTORY`;, args:[]
```

https://tiprow.hawkingrei.com/view/gs/pingcapprow/pr-logs/pull/pingcap_tidb/45457/tiprow_fast_test/1681509938318282752

### 4. What is your TiDB version? (Required)