gobject deprecations

[Narrat]

Since the latest major release of python-gobject (3.54.x) there are various deprecations:

/usr/bin/pim:252: DeprecationWarning: GdkPixbuf.PixbufAnimation.new_from_file is deprecated
  g.pixbufOriginal = GdkPixbuf.PixbufAnimation.new_from_file(path)
/usr/bin/pim:253: DeprecationWarning: GdkPixbuf.PixbufAnimation.is_static_image is deprecated
  if g.pixbufOriginal.is_static_image():
/usr/bin/pim:254: DeprecationWarning: GdkPixbuf.PixbufAnimation.get_static_image is deprecated
  g.pixbufOriginal = g.pixbufOriginal.get_static_image()

Either look for a different (interim) solution on gtk3 or finally finish #28 Although possible that both GTK versions have the same solution, which allows for a two step port.