cpubits: test detection results in CI #60

Job	Run time
test-wasm (stable)	14s
test (i686-unknown-linux-gnu, ubuntu-latest, 1.85.0, sudo apt update && sudo apt install gcc-mult...	38s
test (x86_64-apple-darwin, macos-latest, 1.85.0)	33s
test (x86_64-pc-windows-msvc, windows-latest, 1.85.0)	36s
test (x86_64-unknown-linux-gnu, ubuntu-latest, 1.85.0)	14s
test-wasm (1.85)	18s
	2m 33s

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