Re-enable zlib-ng on all platforms (except s390x, PowerPC, and FreeBSD) #763

Job	Run time
linux (x86_64-unknown-linux-gnu)	8m 10s
linux-arm (aarch64-unknown-linux-gnu, aarch64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	10m 55s
macos-aarch64	10m 20s
linux-s390x (s390x-unknown-linux-gnu, s390x)	1m 10s
linux-arm (armv7-unknown-linux-gnueabihf, armv7)	11m 8s
linux (i686-unknown-linux-gnu)	10m 56s
linux-arm (arm-unknown-linux-musleabihf, arm)	10m 30s
macos-x86_64	11m 49s
windows (x86_64-pc-windows-msvc, x64)	13m 12s
linux-powerpc (powerpc64le-unknown-linux-gnu, ppc64le, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	1m 57s
windows (i686-pc-windows-msvc, x86)	14m 14s
linux-powerpc (powerpc64-unknown-linux-gnu, ppc64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	2m 0s
musllinux (x86_64-unknown-linux-musl)	10m 5s
sdist	9m 28s
musllinux (i686-unknown-linux-musl)	10m 4s
musllinux-cross (aarch64-unknown-linux-musl, aarch64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	11m 5s
musllinux-cross (armv7-unknown-linux-musleabihf, armv7)	10m 14s
	2h 37m 17s

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