[$] Development statistics for 6.12

Linus Torvalds releasedthe 6.12 kernel on November17, as expected. This developmentcycle, the last for 2024, brought 13,344 non-merge changesets into themainline kernel; that made it a relatively slow cycle from thisperspective, but 6.12 includes a long list of significant new features.The time has come to look at where those changes came from, and to look atthe year-long LTS cycle as well.