Bump version to 0.9.3 #194

Job	Run time
macos-x86_64	5m 39s
macos-aarch64	5m 30s
linux-cross (aarch64-unknown-linux-gnu, aarch64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	5m 56s
linux (x86_64-unknown-linux-gnu)	5m 20s
linux-cross (armv7-unknown-linux-gnueabihf, armv7)	6m 3s
linux (i686-unknown-linux-gnu)	8m 36s
musllinux (x86_64-unknown-linux-musl)	5m 55s
musllinux-cross (aarch64-unknown-linux-musl, aarch64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	6m 22s
linux-cross (s390x-unknown-linux-gnu, s390x)	6m 53s
musllinux (i686-unknown-linux-musl)	4m 59s
linux-cross (powerpc64le-unknown-linux-gnu, ppc64le, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	6m 21s
musllinux-cross (armv7-unknown-linux-musleabihf, armv7)	5m 44s
sdist	5m 5s
linux-cross (powerpc64-unknown-linux-gnu, ppc64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	6m 5s
linux-cross (arm-unknown-linux-musleabihf, arm)	5m 36s
windows (x86_64-pc-windows-msvc, x64)	9m 54s
windows (i686-pc-windows-msvc, x86)	9m 13s
windows (aarch64-pc-windows-msvc, x64)	9m 7s
	1h 58m 18s

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