add test.enabled and test.exclude-reason fields #2579

Job	Run time
Build melange and add to artifact cache	39s
Build packages (bubblewrap, hello-wolfi)	1m 24s
Build packages (bubblewrap, glibc)	11m 18s
Build packages (bubblewrap, tini)	1m 14s
Build packages (bubblewrap, lzo)	1m 15s
Build packages (bubblewrap, bubblewrap)	1m 2s
Build packages (bubblewrap, gitsign)	2m 28s
Build packages (bubblewrap, guac)	3m 36s
Build packages (bubblewrap, mdbook)	3m 47s
Build packages (bubblewrap, s3cmd)	1m 17s
Build packages (bubblewrap, perl-yaml-syck)	1m 3s
Build packages (bubblewrap, ncurses)	2m 0s
Build packages (qemu, hello-wolfi)	2m 2s
Build packages (qemu, glibc)	12m 23s
Build packages (qemu, tini)	1m 36s
Build packages (qemu, lzo)	2m 0s
Build packages (qemu, bubblewrap)	1m 50s
Build packages (qemu, gitsign)	3m 16s
Build packages (qemu, guac)	4m 50s
Build packages (qemu, mdbook)	4m 16s
Build packages (qemu, s3cmd)	1m 33s
Build packages (qemu, perl-yaml-syck)	1m 31s
Build packages (qemu, ncurses)	2m 29s
	1h 8m 49s

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