media-sound/soundconverter: bump to 3.0.2

media-sound/soundconverter: bump to 3.0.2

This version fixes up GConf handling and doesn't hard require it.
GConf usage is about ancient gnome-media-profiles stuff, which we've
removed over 5 years ago, it seems, thus no USE flag toggling of it.
If it does find gconf introspection files, fine, it'll just
gracefully try to find the gconf stored media profiles, not find
them and not use gconf further.

Bug: https://bugs.gentoo.org/676256
Closes: https://bugs.gentoo.org/683262
Package-Manager: Portage-2.3.52, Repoman-2.3.12
Signed-off-by: Mart Raudsepp <leio@gentoo.org>