Tests

Add Pathways Support to Benchmark Runner #241

Job	Run time
prelim	2s
gpu_image / Build and upload image (a100-40gb-4)	11m 26s
tpu_image / Build and upload image (v4-8)	1m 44s
tpu_unit_tests / run	13m 41s
tpu_integration_tests / run	6m 30s
gpu_unit_tests / run	2m 55s
gpu_integration_tests / run	9m 55s
Clean up	9s
	46m 22s

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