chore: upgrade which-rs and enable tracing #34

Job	Run time
Lint	1m 36s
Test (namespace-profile-mac-default, aarch64-apple-darwin)	36s
Test (ubuntu-latest, x86_64-unknown-linux-gnu)	2m 11s
Test (windows-latest, x86_64-pc-windows-msvc)	5m 22s
done	3s
	9m 48s

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