Add Apple visionOS support #1079

Job	Run time
Clippy	19s
Rustfmt	7s
Test (stable)	34s
Check (aarch64-apple-darwin)	31s
Test (1.63.0)	1m 44s
Check (aarch64-apple-ios)	31s
Check (aarch64-apple-tvos)	29s
Test (beta)	4m 21s
Check (aarch64-apple-visionos)	28s
Test (nightly)	21s
Test (macos)	17s
Check (aarch64-apple-watchos)	28s
Check (aarch64-linux-android)	30s
Test (windows)	1m 48s
Check (aarch64-unknown-freebsd)	30s
Check (aarch64-unknown-linux-gnu)	31s
Check (aarch64-unknown-linux-musl)	29s
Check (aarch64-unknown-netbsd)	29s
Check (aarch64-unknown-openbsd)	27s
Check (aarch64-unknown-redox)	29s
Check (arm-linux-androideabi)	29s
Check (arm64_32-apple-watchos)	32s
Check (armv7-linux-androideabi)	30s
Check (armv7-sony-vita-newlibeabihf)	32s
Check (i686-linux-android)	28s
Check (i686-unknown-hurd-gnu)	30s
Check (i686-unknown-linux-gnu)	32s
Check (sparcv9-sun-solaris)	32s
Check (x86_64-apple-darwin)	31s
Check (x86_64-apple-ios)	31s
Check (x86_64-pc-solaris)	28s
Check (x86_64-pc-windows-msvc)	29s
Check (x86_64-unknown-dragonfly)	31s
Check (x86_64-unknown-freebsd)	30s
Check (x86_64-unknown-fuchsia)	29s
Check (x86_64-unknown-illumos)	30s
Check (x86_64-unknown-linux-gnu)	28s
Check (x86_64-unknown-linux-musl)	29s
Check (x86_64-unknown-netbsd)	31s
Check (x86_64-unknown-openbsd)	30s
Check (x86_64-unknown-redox)	29s
	25m 54s

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