lang/gcc13-devel: Update to 13.0.0.s20230108

Snapshots 20221218, 20221225 and 20230101 had issues with lto: linking
times were too long, so long that the official package builders could
not build packages successfully (=>> Killing runaway build after 10800
seconds with no output).

This snapshot should perform better thanks to commit
https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=edc038863d88ef0fe7c3ffb3703a9d2b3a17f0a9 .