v0.2.0: zwasm v0.2.0 hash update, comptime version string #40

Job	Run time
cross-compile (x86_64-linux-gnu)	3m 12s
test-macos	2m 57s
cross-compile (x86_64-macos-none)	3m 17s
test-linux	3m 26s
cross-compile (aarch64-macos-none)	3m 35s
cross-compile (aarch64-linux-gnu)	3m 24s
	19m 51s

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