Add allowed prebuilts list #8188

Job	Run time
check-rust	3m 57s
build test linux x86-64	4m 13s
scarb-metadata compatibility check	46s
doc tests	3m 12s
build test windows x86-64	10m 8s
check-website	9s
test linux x86-64 1/8	12s
test linux x86-64 2/8	14s
test linux x86-64 3/8	11s
test linux x86-64 4/8	11s
test linux x86-64 5/8	11s
test linux x86-64 6/8	13s
test linux x86-64 7/8	27s
test linux x86-64 8/8	11s
test windows x86-64 1/8	50s
test windows x86-64 2/8	1m 1s
test windows x86-64 3/8	59s
test windows x86-64 4/8	1m 8s
test windows x86-64 5/8	42s
test windows x86-64 6/8	57s
test windows x86-64 7/8	1m 3s
test windows x86-64 8/8	49s
	31m 44s

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