GCC 12.1 Released

Note: ctfstd.org is, uh, message-residue (?) and basically doesn't exist, and nor do its mailing lists, at least not for now. We decided that integrating discussion of it into the overall binutils and GCC lists (until traffic is high enough to merit a list of its own) would make more sense -- after all, most of the traffic is GCC and binutils patches...