Minor RELEASE.md cleanup, add git version in Summarize output. #2912

Job	Run time
Build melange and add to artifact cache	36s
Build packages (bubblewrap, hello-wolfi)	1m 23s
Build packages (bubblewrap, glibc)	13m 5s
Build packages (bubblewrap, tini)	1m 25s
Build packages (bubblewrap, lzo)	1m 25s
Build packages (bubblewrap, bubblewrap)	1m 26s
Build packages (bubblewrap, gitsign)	2m 48s
Build packages (bubblewrap, guac)	3m 49s
Build packages (bubblewrap, mdbook)	3m 54s
Build packages (bubblewrap, s3cmd)	1m 6s
Build packages (bubblewrap, perl-yaml-syck)	1m 26s
Build packages (bubblewrap, ncurses)	2m 17s
Build packages (qemu, hello-wolfi)	2m 12s
Build packages (qemu, glibc)	13m 50s
Build packages (qemu, tini)	1m 44s
Build packages (qemu, lzo)	2m 2s
Build packages (qemu, bubblewrap)	1m 41s
Build packages (qemu, gitsign)	3m 16s
Build packages (qemu, guac)	5m 17s
Build packages (qemu, mdbook)	4m 30s
Build packages (qemu, s3cmd)	1m 58s
Build packages (qemu, perl-yaml-syck)	1m 40s
Build packages (qemu, ncurses)	2m 47s
	1h 15m 37s

Provide feedback