feat: build config can specify package CPE #3244

Job	Run time
Build melange and add to artifact cache	39s
Build packages (bubblewrap, hello-wolfi)	1m 27s
Build packages (bubblewrap, glibc)	12m 49s
Build packages (bubblewrap, tini)	1m 13s
Build packages (bubblewrap, lzo)	1m 28s
Build packages (bubblewrap, bubblewrap)	1m 59s
Build packages (bubblewrap, gitsign)	3m 26s
Build packages (bubblewrap, guac)	4m 3s
Build packages (bubblewrap, mdbook)	4m 10s
Build packages (bubblewrap, s3cmd)	1m 16s
Build packages (bubblewrap, perl-yaml-syck)	1m 17s
Build packages (bubblewrap, ncurses)	2m 20s
Build packages (qemu, hello-wolfi)	2m 28s
Build packages (qemu, glibc)	17m 9s
Build packages (qemu, tini)	3m 5s
Build packages (qemu, lzo)	3m 34s
Build packages (qemu, bubblewrap)	2m 22s
Build packages (qemu, gitsign)	4m 41s
Build packages (qemu, guac)	5m 46s
Build packages (qemu, mdbook)	5m 46s
Build packages (qemu, s3cmd)	2m 3s
Build packages (qemu, perl-yaml-syck)	2m 15s
Build packages (qemu, ncurses)	5m 54s
	1h 31m 10s

Provide feedback