Load prebuilt macros (#1856) #8260

Job	Run time
test prebuilt plugins linux x86-64	8m 9s
test prebuilt plugins windows x86-64	12m 18s
check-rust	4m 29s
check-website	12s
test prebuilt plugins macos arm64	5m 34s
build test linux x86-64	5m 10s
test prebuilt plugins macos x86-64	14m 53s
build test windows x86-64	16m 3s
scarb-metadata compatibility check	40s
doc tests	3m 19s
test linux x86-64 1/8	21m 21s
test linux x86-64 2/8	25m 7s
test linux x86-64 3/8	20m 29s
test linux x86-64 4/8	18m 24s
test linux x86-64 5/8	15m 7s
test linux x86-64 6/8	15m 58s
test linux x86-64 7/8	12m 7s
test linux x86-64 8/8	14m 43s
test windows x86-64 1/8	20m 11s
test windows x86-64 2/8	22m 45s
test windows x86-64 3/8	20m 0s
test windows x86-64 4/8	16m 8s
test windows x86-64 5/8	16m 37s
test windows x86-64 6/8	14m 36s
test windows x86-64 7/8	11m 10s
test windows x86-64 8/8	14m 3s
	5h 49m 33s

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