audioDeviceSelection: Ensure close() is called with no arguments

This is the same as commit c5b18ee6, but for the audio device selection
dialog.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4139

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1819>
(cherry picked from commit 7eba5322)