Tests

release: bump starknet to 0.8.0 (and deps) #1024

Job	Run time
no-std build	1m 31s
Unix tests (ubuntu-latest, stable)	2m 2s
Unix tests (ubuntu-latest, nightly)	1m 51s
WASM tests	4m 15s
Unix tests (macos-11, stable)	3m 49s
Unix tests (macos-11, nightly)	3m 48s
Windows tests (stable, x86_64-pc-windows-gnu)	6m 8s
Windows tests (stable, x86_64-pc-windows-msvc)	4m 19s
Windows tests (nightly, x86_64-pc-windows-gnu)	4m 59s
Windows tests (nightly, x86_64-pc-windows-msvc)	4m 22s
	37m 4s

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