SECURITY UPDATE: use-after-free in user.c (LP: #2024182)
debian/patches/CVE-2023-3297.patch: return from
user_change_language_authorized_cb() and
user_change_formats_locale_authorized_cb() after throw_error() has
consumed the D-Bus invocation, instead of falling through to
accounts_user_complete_set_language()/set_formats_locale() and
completing the freed invocation a second time.