release 0.28.0 #1514

Job	Run time
test (ubuntu-latest)	14m 8s
Build x86_64-unknown-linux-musl	9m 43s
Build aarch64-unknown-linux-musl	10m 30s
Build powerpc64le-unknown-linux-gnu	10m 47s
test (macos-latest)	10m 58s
Build x86_64-apple-darwin	15m 30s
test (windows-latest)	22m 0s
Build aarch64-apple-darwin	10m 4s
Build x86_64-pc-windows-gnu	19m 18s
Build x86_64-pc-windows-msvc	18m 7s
Post-process	2s
	2h 21m 7s

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