Bug#1116398: gnome-panel: update for GNOME 49 changes

[Jeremy Bícha]

Source: gnome-panel
Version: 3.56.0-1
Severity: serious
X-Debbugs-CC: mitya57 at debian.org
Control: tags -1 patch
Forwarded: https://gitlab.gnome.org/GNOME/gnome-panel/-/commit/94e6cc67c

I believe gnome-panel needs the linked commit to work with GNOME 49,
specifically gnome-session 49 and gnome-settings-daemon 49, currently
in experimental.

I think the commit is probably safe to be uploaded to unstable now,
but I have not tried it.

Thank you,
Jeremy Bícha