Merge with `wasm-3.0`. #73

Job	Run time
build-core-spec	7m 21s
build-web-api-spec	26s
build-js-api-spec	32s
build-legacy-exceptions-core-spec	1m 1s
build-legacy-exceptions-js-api-spec	33s
build-spec-versions	6s
build-code-metadata-spec	2m 8s
publish-spec	6s
	12m 13s

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