chore: prepare v0.9.0 #518

Job	Run time
Build wasm	2m 4s
Run tests on Linux arm64	4m 31s
Run tests on Linux x86 (nightly)	1m 22s
Run tests on Linux x86 (nightly, no default features)	1m 17s
Run tests on macOS arm64 (Apple M1)	1m 44s
Run tests on Linux armv7	4m 10s
Run tests on Linux x86 (stable, no default features)	59s
Run tests on Linux x86 (stable)	59s
	17m 6s

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