mate-system-monitor: update to 1.22.1

### mate-system-monitor 1.22.1

  * Translations update
  * support 32 cpus
  * sysinfo: show debian version
  * Show available disk space in ZFS
  * Show 32/64-bit Version intead of release for Arch Linux in System tab
  * Show OpenIndiana release and kernel info in System tab
  * Show FreeBSD sysname, release, version in System tab
  * Fix openSUSE Tumbleweed rolling release info
  * gtk3: use "program-name" property in gtk_show_about_dialog
  * help: update copyright

(gutteridge)