Add `scarb prove` #8487

Job	Run time
doc tests	3m 42s
scarb-metadata compatibility check	57s
check-rust	2m 9s
build test linux x86-64	3m 30s
check-rust (scarb-prove)	52s
check-website	8s
build test windows x86-64	15m 21s
snforge-init	6m 50s
test prebuilt plugins linux x86-64	6m 36s
test scarb-prove linux x86-64	23m 0s
test prebuilt plugins windows x86-64	14m 1s
test scarb-prove windows x86-64	23m 39s
test prebuilt plugins macos arm64	3m 59s
test prebuilt plugins macos x86-64	5m 10s
test linux x86-64 1/4	31m 17s
test linux x86-64 2/4	31m 18s
test linux x86-64 3/4	31m 18s
test linux x86-64 4/4	31m 19s
test windows x86-64 1/4	31m 4s
test windows x86-64 2/4	31m 3s
test windows x86-64 3/4	31m 1s
test windows x86-64 4/4	29m 11s
	5h 57m 25s

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