[bug#52576] [PATCH] gnu: ibus-anthy: Update to 1.15.12

[Taiju HIGASHI]

In addition, I will share the contents of the following file.

```
$ cat ~/.guix-profile/libexec/ibus-setup-anthy 
#!/gnu/store/4y5m9lb8k3qkb1y9m02sw9w9a6hacd16-bash-minimal-5.1.8/bin/bash
export 
GUIX_PYTHONPATH="/gnu/store/x5qnvlqgcb73nksrzavpq8pg9xgrfwqv-python-3.9.9/lib/python3.9/site-packages:/gnu/store/0vwc428ypg7g141d4adpndmsyrlvw13p-ibus-1.5.24/lib/python3.9/site-packages:/gnu/store/g14amgxwm9sj24p1myw0f2hh109ymjcv-python-pygobject-3.40.1/lib/python3.9/site-packages${GUIX_PYTHONPATH:+:}$GUIX_PYTHONPATH"
export 
GI_TYPELIB_PATH="/gnu/store/j1civ48k7fl7fjwzl05ci5lxlrhjbvi1-gtk+-3.24.30/lib/girepository-1.0:/gnu/store/0vwc428ypg7g141d4adpndmsyrlvw13p-ibus-1.5.24/lib/girepository-1.0:/gnu/store/hwz7vhykh8iijwdrcbn806gwhpgql8yd-gobject-introspection-1.66.1/lib/girepository-1.0:/gnu/store/4f6dnap0kvl3mypl4bqgx2f7258l9d03-pango-1.48.10/lib/girepository-1.0:/gnu/store/32mcq3cfjkinzz8zc3d7ss11mf3a7g9p-librsvg-2.50.7/lib/girepository-1.0:/gnu/store/p2d403rc23gsgyp4qrgrhnjdq2gr9pvi-atk-2.36.0/lib/girepository-1.0:/gnu/store/j61ilxk4aiiaw1v9qx8wm90pr188s4nk-harfbuzz-2.8.2/lib/girepository-1.0:/gnu/store/pazkqmzcgkq9h2wpjjh0nb32ppslmnkr-gdk-pixbuf-2.42.4/lib/girepository-1.0:/gnu/store/yk0hfds80z2xx8bjs5gmi1z59gp39pkn-at-spi2-core-2.40.0/lib/girepository-1.0:/gnu/store/j1civ48k7fl7fjwzl05ci5lxlrhjbvi1-gtk+-3.24.30/lib/girepository-1.0${GI_TYPELIB_PATH:+:}$GI_TYPELIB_PATH"
exec -a "$0" 
"/gnu/store/93fbwxycshdz4gcqphcns3dk0x5fxayx-ibus-anthy-1.5.14/libexec/.ibus-setup-anthy-real"
 "$@"
```

Regards,
--
Taiju