[tests] Fix bnb cpu error #5414

Job	Run time
run-tests (latest, test_prod)	1m 49s
run-tests (latest, test_core)	2m 58s
run-tests (latest, test_cli)	2m 30s
run-tests (latest, test_big_modeling)	2m 17s
run-tests (latest, test_deepspeed)	2m 23s
run-tests (latest, test_fsdp)	2m 25s
run-tests (latest, test_example_differences)	2m 14s
run-tests (latest, test_checkpoint_step)	4m 4s
run-tests (latest, test_checkpoint_epoch)	4m 19s
run-tests (latest, test_rest)	9m 59s
run-tests (minimum, test_prod)	2m 53s
run-tests (minimum, test_core)	4m 0s
run-tests (minimum, test_cli)	3m 51s
run-tests (minimum, test_big_modeling)	3m 29s
run-tests (minimum, test_deepspeed)	3m 31s
run-tests (minimum, test_fsdp)	3m 36s
run-tests (minimum, test_example_differences)	3m 19s
run-tests (minimum, test_checkpoint_step)	4m 47s
run-tests (minimum, test_checkpoint_epoch)	4m 37s
run-tests (minimum, test_rest)	10m 54s
	1h 19m 55s

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