Add Nix prelude tests #104

Job	Run time
lint-build	59s
rustfmt	14s
test-flake (x86_64-unknown-linux-gnu)	52s
test (stable, x86_64-unknown-linux-gnu)	3m 6s
test-flake (x86_64-unknown-linux-musl)	48s
test-wasm	1m 15s
test (stable, x86_64-unknown-linux-musl)	5m 22s
test-flake (aarch64-unknown-linux-gnu)	50s
test (stable, aarch64-unknown-linux-gnu)	1m 58s
test-flake (aarch64-unknown-linux-musl)	58s
test (stable, aarch64-unknown-linux-musl)	2m 12s
test-flake (x86_64-apple-darwin)	15m 18s
test (stable, x86_64-apple-darwin)	6m 28s
test-flake (aarch64-apple-darwin, macos-14)	7m 14s
test (stable, x86_64-pc-windows-msvc)	5m 59s
test (stable, aarch64-apple-darwin, macos-latest, false, true, true)	3m 15s
test-projects	1m 59s
	58m 47s

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