Bump version to 0.5.11 #682

Job	Run time
macos-aarch64	10m 33s
macos-x86_64	10m 16s
sdist	9m 35s
linux (x86_64-unknown-linux-gnu)	7m 59s
linux-arm (aarch64-unknown-linux-gnu, aarch64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	11m 6s
linux (i686-unknown-linux-gnu)	11m 5s
linux-arm (armv7-unknown-linux-gnueabihf, armv7)	10m 40s
linux-arm (arm-unknown-linux-musleabihf, arm)	10m 33s
windows (x86_64-pc-windows-msvc, x64)	16m 16s
linux-powerpc (powerpc64le-unknown-linux-gnu, ppc64le, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	11m 18s
windows (i686-pc-windows-msvc, x86)	16m 15s
linux-s390x (s390x-unknown-linux-gnu, s390x)	15m 34s
linux-powerpc (powerpc64-unknown-linux-gnu, ppc64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	11m 34s
musllinux (x86_64-unknown-linux-musl)	10m 24s
musllinux-cross (aarch64-unknown-linux-musl, aarch64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	10m 57s
musllinux (i686-unknown-linux-musl)	9m 48s
musllinux-cross (armv7-unknown-linux-musleabihf, armv7)	10m 20s
	3h 14m 13s

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