feat(volume mounts): add support for mounting volumes into the melange build context #2935

Job	Run time
Build melange and add to artifact cache	40s
Build packages (bubblewrap, hello-wolfi)	1m 22s
Build packages (bubblewrap, glibc)	13m 23s
Build packages (bubblewrap, tini)	1m 15s
Build packages (bubblewrap, lzo)	1m 41s
Build packages (bubblewrap, bubblewrap)	1m 13s
Build packages (bubblewrap, gitsign)	3m 0s
Build packages (bubblewrap, guac)	3m 53s
Build packages (bubblewrap, mdbook)	3m 47s
Build packages (bubblewrap, s3cmd)	1m 10s
Build packages (bubblewrap, perl-yaml-syck)	1m 26s
Build packages (bubblewrap, ncurses)	2m 14s
Build packages (qemu, hello-wolfi)	1m 50s
Build packages (qemu, glibc)	14m 10s
Build packages (qemu, tini)	1m 40s
Build packages (qemu, lzo)	1m 50s
Build packages (qemu, bubblewrap)	1m 42s
Build packages (qemu, gitsign)	3m 27s
Build packages (qemu, guac)	4m 44s
Build packages (qemu, mdbook)	4m 24s
Build packages (qemu, s3cmd)	1m 37s
Build packages (qemu, perl-yaml-syck)	1m 44s
Build packages (qemu, ncurses)	2m 37s
	1h 14m 49s

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