mate.mate-desktop: 1.20.3 -> 1.21.0 (#41991)

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

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

These checks were done:

- built on NixOS
- Warning: no invocation of /nix/store/dx51na6smf7cpbav7zgb2x5xyyfbpcbp-mate-desktop-1.21.0/bin/mate-color-select had a zero exit code or showed the expected version
- /nix/store/dx51na6smf7cpbav7zgb2x5xyyfbpcbp-mate-desktop-1.21.0/bin/mate-about passed the binary check.
- Warning: no invocation of /nix/store/dx51na6smf7cpbav7zgb2x5xyyfbpcbp-mate-desktop-1.21.0/bin/.mate-color-select-wrapped had a zero exit code or showed the expected version
- /nix/store/dx51na6smf7cpbav7zgb2x5xyyfbpcbp-mate-desktop-1.21.0/bin/.mate-about-wrapped passed the binary check.
- 2 of 4 passed binary check by having a zero exit code.
- 0 of 4 passed binary check by having the new version present in output.
- found 1.21.0 with grep in /nix/store/dx51na6smf7cpbav7zgb2x5xyyfbpcbp-mate-desktop-1.21.0
- directory tree listing: https://gist.github.com/b54e2f1e430d08d273ba8dab30a7f562
- du listing: https://gist.github.com/74e6289b7a86dee591389adc61e024ed

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

@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "mate-desktop-${version}";
-  version = "1.20.3";
+  version = "1.21.0";
 
   src = fetchurl {
     url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
-    sha256 = "132z1wwmh5115cpgkx9w6hzkk87f1vh66paaf3b2d2qfci7myffs";
+    sha256 = "0qd76p5zqgifiawkgv2casb9ll55j4qq4pfxgxj3j5zvjr3dgr47";
   };
 
   nativeBuildInputs = [