prepare release 0.8.1 (#1231) #50

Job	Run time
Publishing x86_64-pc-windows-msvc	13m 44s
Publishing x86_64-pc-windows-gnu	15m 40s
Publishing x86_64-apple-darwin	9m 9s
Publishing aarch64-apple-darwin	8m 37s
Publishing x86_64-unknown-linux-gnu	8m 4s
Publishing x86_64-unknown-linux-musl	7m 58s
Publishing aarch64-unknown-linux-gnu	10m 9s
Publishing i686-unknown-linux-gnu	10m 27s
Publishing armv7-unknown-linux-gnueabihf	8m 18s
Creating release with artifacts	11s
Result (Release CD)	1s
	1h 32m 18s

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