[test] Unstable test FlussAdminITCase.testGetTableStatsForPrimaryKeyTableWithFailover

[github-actions]

https://github.com/apache/fluss/actions/runs/26438789553/job/77827809044

[ERROR] org.apache.fluss.client.admin.FlussAdminITCase.testGetTableStatsForPrimaryKeyTableWithFailover  Time elapsed: 10.895 s  <<< FAILURE!
org.opentest4j.AssertionFailedError: