mediainfo-gui: 17.12 -> 18.03.1

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

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

These checks were done:

- built on NixOS
- Warning: no binary found that responded to help or version flags. (This warning appears even if the package isn't expected to have binaries.)
- directory tree listing: https://gist.github.com/2d796c04123f1a7255d778b1a9bf3597

pkgs/applications/misc/mediainfo-gui/default.nix

@@ -2,11 +2,11 @@
 , desktop-file-utils, libSM, imagemagick }:
 
 stdenv.mkDerivation rec {
-  version = "17.12";
+  version = "18.03.1";
   name = "mediainfo-gui-${version}";
   src = fetchurl {
     url = "https://mediaarea.net/download/source/mediainfo/${version}/mediainfo_${version}.tar.xz";
-    sha256 = "1pxdf0ny3c38gl513zdiaagpvk4bqnsc2fn7476yjdpv2lxsw56f";
+    sha256 = "1mpwbqvw6awni5jq7i5yqvf6wgwjc37sl42q20rdq2agdlslqrkr";
   };
 
   nativeBuildInputs = [ autoreconfHook pkgconfig ];