build: add rust target for macOS cross compiles #6123

Job	Run time
collect-openssl-versions	0s
github.event_name == 'workflow_dispatch' && 'Skipped job' \|\| 'Build slim tarball'	0s
aarch64-linux: Cache V8 build	0s
${{ matrix.system }}: with shared libraries	0s
aarch64-linux: with shared ${{ matrix.openssl.attr }} (${{ matrix.openssl.version }})	0s
	0s

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