ci: add gtk-vnc to the deps

The gtk-vnc package is used by the vnc-display-test qtest
program. Technically only gvnc is needed, but since we
already pull in the gtk3 dep, it is harmless to depend
on gtk-vnc.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240718094159.902024-2-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
1 file changed