feat: support `no_std` (#15) #58

Job	Run time
test-linux	27s
test-linux-aarch64	46s
lint	24s
test-macos	2m 45s
test-no-std (x86_64-unknown-none)	18s
test-windows	3m 34s
test-no-std (aarch64-unknown-none)	19s
CI is green	1s
	8m 34s

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