fix(qemu): fix MacOS crosscompile path #2940

Job	Run time
Build melange and add to artifact cache	35s
Build packages (bubblewrap, hello-wolfi)	1m 28s
Build packages (bubblewrap, glibc)	13m 28s
Build packages (bubblewrap, tini)	1m 10s
Build packages (bubblewrap, lzo)	1m 30s
Build packages (bubblewrap, bubblewrap)	1m 11s
Build packages (bubblewrap, gitsign)	2m 46s
Build packages (bubblewrap, guac)	3m 54s
Build packages (bubblewrap, mdbook)	3m 46s
Build packages (bubblewrap, s3cmd)	1m 11s
Build packages (bubblewrap, perl-yaml-syck)	1m 13s
Build packages (bubblewrap, ncurses)	2m 22s
Build packages (qemu, hello-wolfi)	2m 7s
Build packages (qemu, glibc)	15m 27s
Build packages (qemu, tini)	1m 43s
Build packages (qemu, lzo)	1m 53s
Build packages (qemu, bubblewrap)	1m 38s
Build packages (qemu, gitsign)	3m 20s
Build packages (qemu, guac)	5m 11s
Build packages (qemu, mdbook)	4m 28s
Build packages (qemu, s3cmd)	1m 44s
Build packages (qemu, perl-yaml-syck)	2m 2s
Build packages (qemu, ncurses)	2m 40s
	1h 16m 47s

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