Use Astral-maintained `tokio-tar` fork #990

Job	Run time
macos-x86_64	1s
sdist	1m 39s
windows (x86_64-pc-windows-msvc, x64)	1s
linux (x86_64-unknown-linux-gnu)	1m 2s
linux (i686-unknown-linux-gnu)	1m 10s
linux-arm (aarch64-unknown-linux-gnu, aarch64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	1m 27s
linux-s390x (s390x-unknown-linux-gnu, s390x)	52s
windows (i686-pc-windows-msvc, x86)	1m 29s
linux-arm (armv7-unknown-linux-gnueabihf, armv7)	1m 26s
windows (aarch64-pc-windows-msvc, x64)	1m 29s
linux-arm (arm-unknown-linux-musleabihf, arm)	1m 26s
macos-aarch64	1s
linux-powerpc (powerpc64le-unknown-linux-gnu, ppc64le, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	1m 27s
musllinux (x86_64-unknown-linux-musl)	1m 26s
musllinux-cross (aarch64-unknown-linux-musl, aarch64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	1m 26s
musllinux (i686-unknown-linux-musl)	1m 27s
musllinux-cross (armv7-unknown-linux-musleabihf, armv7)	1m 25s
linux-powerpc (powerpc64-unknown-linux-gnu, ppc64, -e JEMALLOC_SYS_WITH_LG_PAGE=16)	1m 25s
	20m 39s

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