testing/getting-things-gnome package requires py3-cairo to run

After installing the getting-things-gnome package, it fails to run :

Couldn't bind the gettext translation domain. Some translations won't work.
module 'locale' has no attribute 'bindtextdomain'
Traceback (most recent call last):
  File "/usr/bin/gtg", line 79, in <module>
    from GTG.gtk.application import Application
  File "/usr/lib/python3.10/site-packages/GTG/gtk/application.py", line 28, in <module>
    from GTG.gtk.browser.main_window import MainWindow
  File "/usr/lib/python3.10/site-packages/GTG/gtk/browser/main_window.py", line 40, in <module>
    from GTG.gtk.browser.treeview_factory import TreeviewFactory
  File "/usr/lib/python3.10/site-packages/GTG/gtk/browser/treeview_factory.py", line 30, in <module>
    from GTG.gtk.browser.cell_renderer_tags import CellRendererTags
  File "/usr/lib/python3.10/site-packages/GTG/gtk/browser/cell_renderer_tags.py", line 21, in <module>
    import cairo
ModuleNotFoundError: No module named 'cairo'

Installing py3-cairo fixes the issue.