test: add test that build run downloads what it should #756

Job	Run time
Lint Bazel files	3s
Generate configs	8s
//sram:top_mix_grt	3m 4s
tag_array_64x184_generate_abstract	3m 40s
open //sram:top_mix	4m 35s
tag_array_64x184_report	2m 18s
Local flow - clean setup	1m 46s
open tag_array_64x184	4m 17s
lb_32x128_generate_abstract	3m 41s
open L1MetadataArray	6m 7s
lb_32x128_test_generate_abstract	2m 13s
L1MetadataArray_generate_abstract	5m 0s
open subpackage:L1MetadataArray	9m 2s
data_2048x8_generate_abstract	2m 13s
open subpackage:tag_array_64x184	6m 10s
regfile_128x65_floorplan	2m 11s
subpackage:L1MetadataArray_generate_abstract	4m 51s
subpackage:tag_array_64x184_generate_abstract	2m 10s
Local flow - preinstalled orfs	1m 55s
	1h 5m 24s

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