add release workflow #29

Job	Run time
rustfmt	8s
test (pinned, ubuntu-latest, 1.74.0)	1m 25s
test (stable, ubuntu-latest, stable)	1m 10s
test (beta, ubuntu-latest, beta)	1m 16s
test (nightly, ubuntu-latest, nightly)	1m 22s
test (stable-musl, ubuntu-latest, stable, x86_64-unknown-linux-musl)	1m 39s
test (stable-x86, ubuntu-latest, stable, i686-unknown-linux-gnu)	1m 46s
test (stable-aarch64, ubuntu-latest, stable, aarch64-unknown-linux-gnu)	1m 30s
test (stable-arm-gnueabihf, ubuntu-latest, stable, armv7-unknown-linux-gnueabihf)	1m 50s
test (stable-arm-musleabihf, ubuntu-latest, stable, armv7-unknown-linux-musleabihf)	1m 56s
test (stable-arm-musleabi, ubuntu-latest, stable, armv7-unknown-linux-musleabi)	1m 39s
test (stable-powerpc64, ubuntu-latest, stable, powerpc64-unknown-linux-gnu)	1m 52s
test (stable-s390x, ubuntu-latest, stable, s390x-unknown-linux-gnu)	1m 34s
test (macos, macos-latest, nightly)	1m 57s
test (win-msvc, windows-2022, nightly)	2m 19s
test (win-gnu, windows-2022, nightly-x86_64-gnu)	3m 4s
	26m 27s

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