gnu: beets-bandcamp: Fix build.

This fixes a build failure in the 'sanity-check' phase.

* gnu/packages/music.scm (beets-bandcamp)[propagated-inputs]: Add
python-confuse, python-jellyfish, python-mediafile, python-munkres,
python-musicbrainzngs and python-unidecode.

Signed-off-by: Leo Famulari <leo@famulari.name>

gnu/packages/music.scm

@@ -40,7 +40,7 @@
 ;;; Copyright © 2021 Frank Pursel <frank.pursel@gmail.com>
 ;;; Copyright © 2021 Rovanion Luckey <rovanion.luckey@gmail.com>
 ;;; Copyright © 2021 Justin Veilleux <terramorpha@cock.li>
-;;; Copyright © 2021 Felix Gruber <felgru@posteo.net>
+;;; Copyright © 2021, 2022 Felix Gruber <felgru@posteo.net>
 ;;; Copyright © 2021 Simon Streit <simon@netpanic.org>
 ;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
 ;;; Copyright © 2021 Thomas Albers Raviola <thomas@thomaslabs.org>
@@ -3875,8 +3875,17 @@ your music.")
     (build-system python-build-system)
     (arguments '(#:tests? #f))          ; there are no tests
     (propagated-inputs
-     (list beets python-isodate python-beautifulsoup4 python-requests
-           python-six))
+     (list beets
+           python-beautifulsoup4
+           python-confuse
+           python-isodate
+           python-jellyfish
+           python-mediafile
+           python-munkres
+           python-musicbrainzngs
+           python-requests
+           python-six
+           python-unidecode))
     (home-page "https://github.com/unrblt/beets-bandcamp")
     (synopsis "Bandcamp plugin for beets")
     (description