Test

test: add testcases for bm25 function #1467

Job	Run time
Backup and restore with rbac config (helm, standalone, master-latest)	8m 5s
Backup and restore cli (docker-compose, standalone, standalone, master-latest)	4m 3s
Backup and restore after upgrade (docker-compose, standalone, standalone, v2.4.17, master-latest)	3m 26s
Backup and restore cross version (docker-compose, standalone, standalone, 2.3-latest, master-latest)	3m 25s
Backup and restore after upgrade (docker-compose, standalone, standalone, v2.4.17, 2.4-latest)	3m 11s
Backup and restore after upgrade (docker-compose, standalone, standalone, 2.4-latest, master-latest)	3m 24s
Backup and restore cross version (docker-compose, standalone, standalone, 2.3-latest, 2.4-latest)	3m 25s
Backup and restore cross version (docker-compose, standalone, standalone, 2.4-latest, master-latest)	3m 56s
Backup and restore api (docker-compose, standalone, master-latest, L0)	10m 36s
Backup and restore api (docker-compose, standalone, master-latest, L1)	7m 13s
Backup and restore api (docker-compose, standalone, master-latest, L2)	12m 34s
Backup and restore api (docker-compose, standalone, master-latest, MASTER)	4m 11s
Backup and restore api (docker-compose, standalone, 2.4-latest, L0)	9m 12s
Backup and restore api (docker-compose, standalone, 2.4-latest, L1)	6m 50s
Backup and restore api (docker-compose, standalone, 2.4-latest, L2)	10m 18s
	1h 33m 49s

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