[Debian-on-mobile-maintainers] Bug#1064373: squeekboard: Depends on obsolete rust-gtk

[Jeremy Bícha]

Source: squeekboard
Version: 1.22.0-5
Severity: important
Tags: upstream trixie sid
Forwarded: https://gitlab.gnome.org/World/Phosh/squeekboard/-/issues/64

rust-gtk (the old GTK3 bindings) are no longer maintained. Squeekboard
is the last thing keep rust-gtk in Debian. Please switch to rust-gtk4.

Thank you,
Jeremy Bícha