feat: `--concurrency-limit` and `--parallel` #1172

Job	Run time
detect-changes	8s
Format and Check Deps	1m 18s
Clippy	1m 10s
Test (musl)	4m 8s
Test (macos-latest, x86_64-apple-darwin)	3m 44s
Test (ubuntu-latest, x86_64-unknown-linux-gnu)	2m 0s
Test (windows-latest, x86_64-pc-windows-msvc)	2m 37s
Test (macos-latest, aarch64-apple-darwin)	1m 55s
done	3s
	17m 3s

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