mopidy-soundcloud: 2.0.2 -> 2.1.0

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/mopidy-soundcloud/versions.

These checks were done:

- built on NixOS

- 0 of 0 passed binary check by having a zero exit code.
- 0 of 0 passed binary check by having the new version present in output.
- found 2.1.0 with grep in /nix/store/6gkpzmzc9cfbxcjhivj3dg7rz9cw3ayj-mopidy-soundcloud-2.1.0
- directory tree listing: https://gist.github.com/846defa35810ad1c60db537d7a09e0c7
- du listing: https://gist.github.com/d30dd0f3aab3d0dccd1feaba74758eda