Merge pull request #297 from cybozu-go/use-k8s-version-supported-by-m… #1369

Job	Run time
build (1.35.1, 3Mi, change-to-primary)	31m 1s
build (1.35.1, 3Mi, incr-backup)	37m 12s
build (1.35.1, 3Mi, lock)	25m 11s
build (1.35.1, 3Mi, backup-failure)	34m 17s
build (1.35.1, 200Gi, various-transfer-part-size)	23m 20s
build (1.35.1, 10Mi, various-transfer-part-size)	25m 1s
build (1.35.1, 3Mi, change-to-standalone)	24m 7s
build (1.35.1, 3Mi, full-backup)	37m 2s
build (1.35.1, 3Mi, change-to-secondary)	30m 40s
build (1.34.4, 3Mi, full-backup)	35m 58s
build (1.35.1, 3Mi, !//)	46m 57s
	5h 50m 46s

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