Log Message:
xfce4-cpugraph-plugin: update to 1.2.10

1.2.10 (2023-12-03)
======
- Add xfce4cpp to EXTRA_DIST

1.2.9 (2023-12-03)
=====
- Don't update tooltip string when tooltip is not visible
- Improve CPU hotplugging on Linux
- Use "xfce_spawn_command_line()"
- Code refactor
- Update source code for the new xfce4cpp library
- Rework of xfce4cpp library
- Reduce the minimum width from 10 to 1
- Add missing include
- Translation Updates:
  Catalan, Chinese (China), Danish, Finnish, Hebrew, Korean, Slovenian,
  Spanish, Ukrainian