sysutils/gnome-settings-daemon: fix comparison with Meson option
meson.build:86:3: ERROR: The == operator of str does not accept objects of type bool (True)
https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/commit/28e28e9e5983
PR: 259080
Reported by: antoine (via exp-run)
Regressed by: https://github.com/mesonbuild/meson/commit/a6c9a151d3ce