Merge branch 'macos' of https://github.com/t-8ch/util-linux

Merge branch 'macos' of https://github.com/t-8ch/util-linux

* 'macos' of https://github.com/t-8ch/util-linux:
  ci: add a macos workflow
  test_threads_create: add a macOS fallback
  meson: gate test_child_create on sys/prctl.h
  ctrlaltdel: pass correct integer types to printf
  meson: gate irqtop on sys/epoll.h and cpu_set_t
  meson: gate lsirq on cpu_set_t
  meson: gate lsipc on LINUX
  meson: gate pivot_root on LINUX
  meson: gate lscpu on LINUX and cpu_set_t
  meson: add build-lscpu option