common.mk: update from platform2

  - f4c7645ac292d099b28b157d4e2706ed3957974d common-mk: Use C++23. by Hidehiko Abe <hidehiko@chromium.org>
  - 102a6341dde2881fe913563cb4fab995153958b6 common-mk: common.mk: add note about copybara automation by Mike Frysinger <vapier@chromium.org>

GitOrigin-RevId: f4c7645ac292d099b28b157d4e2706ed3957974d
Change-Id: Iee1a2cb5f3e082f83099b638ee434dbf8a0e46e9
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/libevdev/+/6486436
Auto-Submit: Copybara Service <copybara-worker-blackhole@google.com>
Bot-Commit: Copybara Service <copybara-worker-blackhole@google.com>
Commit-Queue: Copybara Service <copybara-worker-blackhole@google.com>
Tested-by: Copybara Service <copybara-worker-blackhole@google.com>