Use cbor-edn instead of cbor-diag #35

Job	Run time
emscripten (ubuntu-latest, wasm32-unknown-emscripten)	1m 30s
windows (windows-latest, x64)	1m 51s
linux (ubuntu-latest, x86_64)	1m 25s
macos (macos-latest, x86_64)	34s
sdist	11s
windows (windows-latest, x86)	5m 4s
macos (macos-14, aarch64)	28s
linux (ubuntu-latest, x86)	1m 42s
linux (ubuntu-latest, aarch64)	3m 38s
linux (ubuntu-latest, armv7)	3m 40s
linux (ubuntu-latest, s390x)	3m 37s
linux (ubuntu-latest, ppc64le)	3m 38s
Release	0s
	27m 18s

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