snapcast: 0.30.0 -> 0.32.3

https://github.com/badaix/snapcast/releases/tag/v0.31.0
https://github.com/badaix/snapcast/releases/tag/v0.32.0
https://github.com/badaix/snapcast/releases/tag/v0.32.1
https://github.com/badaix/snapcast/releases/tag/v0.32.2
https://github.com/badaix/snapcast/releases/tag/v0.32.3

pkgs/applications/audio/snapcast/default.nix

@@ -8,6 +8,7 @@
   asio,
   avahi,
   boost,
+  expat,
   flac,
   libogg,
   libvorbis,
@@ -23,13 +24,13 @@
 
 stdenv.mkDerivation rec {
   pname = "snapcast";
-  version = "0.30.0";
+  version = "0.32.3";
 
   src = fetchFromGitHub {
     owner = "badaix";
     repo = "snapcast";
     rev = "v${version}";
-    hash = "sha256-EJgpZz4PnXfge0rkVH1F7cah+i9AvDJVSUVqL7qChDM=";
+    hash = "sha256-pGON2Nh7GgcGvMUNI3nWstm5Q9R+VW9eEi4IE6KkFBo=";
   };
 
   nativeBuildInputs = [
@@ -42,6 +43,7 @@ stdenv.mkDerivation rec {
     boost
     asio
     avahi
+    expat
     flac
     libogg
     libvorbis