unstable test: lightning_tidb_rowid

[lichunzhu]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

/run-integration-br-test

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

CI success

3. What did you see instead (Required)

https://ci.pingcap.net/blue/organizations/jenkins/br_ghpr_unit_and_integration_test/detail/br_ghpr_unit_and_integration_test/13935/pipeline/

4. What is your TiDB version? (Required)

3f43ecf