cinnamon.cinnamon-desktop: 5.8.0 -> 6.0.0

https://github.com/linuxmint/cinnamon-desktop/compare/5.8.0...6.0.0

Added gnome-systemd.
https://github.com/linuxmint/cinnamon-desktop/commit/7eadfb1da9a42384396978b8ab46e0725d18e04f

Added gnome-idle-monitor (replaces cs-idle-monitor).
https://github.com/linuxmint/cinnamon-desktop/commit/2419322898bca95fa90d468de2b55feac7e77977

pkgs/desktops/cinnamon/cinnamon-desktop/default.nix

@@ -10,6 +10,7 @@
 , python3
 , lib
 , stdenv
+, systemd
 , xkeyboard_config
 , xorg
 , wrapGAppsHook
@@ -18,13 +19,13 @@
 
 stdenv.mkDerivation rec {
   pname = "cinnamon-desktop";
-  version = "5.8.0";
+  version = "6.0.0";
 
   src = fetchFromGitHub {
     owner = "linuxmint";
     repo = pname;
     rev = version;
-    hash = "sha256-rYTWtdYfMow3cIPhJdcmhyaIIU7fgVecWigbsCW0Piw=";
+    hash = "sha256-Ay9JyPBsE345dBwQHChkaGuoXiB2nPyvCNhWWphL8kY=";
   };
 
   outputs = [ "out" "dev" ];
@@ -37,6 +38,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [
     gdk-pixbuf
+    systemd
     xkeyboard_config
     xorg.libxkbfile
     xorg.libXext