test: simplify test cases #1368

Job	Run time
test-backup-restore-after-upgrade (docker-compose, standalone, standalone, v2.4.17, master-latest)	4m 5s
test-backup-restore-cli (docker-compose, standalone, standalone, master-latest)	4m 28s
test-backup-restore-cross-version (docker-compose, standalone, standalone, 2.3-latest, master-lat...	4m 0s
test-backup-restore-after-upgrade (docker-compose, standalone, standalone, v2.4.17, 2.4-latest)	3m 43s
test-backup-restore-cross-version (docker-compose, standalone, standalone, 2.3-latest, 2.4-latest)	3m 41s
test-backup-restore-after-upgrade (docker-compose, standalone, standalone, 2.4-latest, master-lat...	3m 46s
test-backup-restore-cross-version (docker-compose, standalone, standalone, 2.4-latest, master-lat...	4m 38s
test-backup-restore-api (docker-compose, standalone, master-latest, L0)	11m 17s
test-backup-restore-api (docker-compose, standalone, master-latest, L1)	6m 13s
test-backup-restore-api (docker-compose, standalone, master-latest, L2)	12m 16s
test-backup-restore-api (docker-compose, standalone, master-latest, MASTER)	3m 57s
test-backup-restore-api (docker-compose, standalone, 2.4-latest, L0)	9m 45s
test-backup-restore-api (docker-compose, standalone, 2.4-latest, L1)	5m 37s
test-backup-restore-api (docker-compose, standalone, 2.4-latest, L2)	9m 54s
	1h 27m 20s

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