Rust

Implement BLS12-381 `contracttype` support #4721

Job	Run time
semver-checks	3m 5s
build-fuzz	1m 23s
cargo-deny (advisories)	38s
docs	3m 17s
cargo-deny (bans licenses sources)	41s
check-git-rev-deps	13s
fmt	16s
migration-docs	17s
readme	1m 15s
build-and-test (msrv, ubuntu-latest, x86_64-unknown-linux-gnu)	5m 4s
publish-dry-run	0s
build-and-test (msrv, ubuntu-latest, aarch64-unknown-linux-gnu, true)	2m 16s
build-and-test (msrv, windows-latest, x86_64-pc-windows-msvc)	5m 31s
build-and-test (latest, ubuntu-latest, x86_64-unknown-linux-gnu)	5m 41s
build-and-test (latest, ubuntu-latest, aarch64-unknown-linux-gnu, true)	4m 22s
build-and-test (latest, windows-latest, x86_64-pc-windows-msvc)	5m 33s
complete	1s
	39m 33s

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