test flake in pkg/kv/kvserver: `TestConsistencyQueueRecomputeStats`

[iliana]

https://github.com/oxidecomputer/cockroach/pull/71/checks?check_run_id=83094338730

https://buildomat.eng.oxide.computer/wg/0/details/01KVVHJPQXVET94W0VYMV62WMJ/7hy7LsagYaAEQfCAnD3rnffUMvQhscCfJjTkuwqnB733LNlv/01KVVHK33CFVTYAXBXZMX81PSS#S2687

--- FAIL: TestConsistencyQueueRecomputeStats (5.01s)
    test_log_scope.go:79: test logs captured to: /tmp/logTestConsistencyQueueRecomputeStats1493483488
    test_log_scope.go:80: use -show-logs to present logs inline
    --- FAIL: TestConsistencyQueueRecomputeStats/hadEstimates=false (2.94s)
        consistency_queue_test.go:683: still have a SysCount of 123009
    consistency_queue_test.go:492: -- test log scope end --