mate.pluma: 1.26.1 -> 1.28.0

https://github.com/mate-desktop/pluma/compare/v1.26.1...v1.28.0

Also drops adwaita-icon-theme, XDG_ICON_DIRS is not picked up
by wrapGAppsHook for a while and we are fine.

pkgs/desktops/mate/default.nix

···
     mate-user-share = callPackage ./mate-user-share { };
     mate-utils = callPackage ./mate-utils { };
     mozo = callPackage ./mozo { };
-    pluma = callPackage ./pluma { inherit (pkgs.gnome) adwaita-icon-theme; };
+    pluma = callPackage ./pluma { };
     python-caja = callPackage ./python-caja { };
 
     basePackages = [

pkgs/desktops/mate/pluma/default.nix

···
 , enchant
 , libxml2
 , python3
-, adwaita-icon-theme
 , gtksourceview4
 , libpeas
 , mate-desktop
···
 
 stdenv.mkDerivation rec {
   pname = "pluma";
-  version = "1.26.1";
+  version = "1.28.0";
 
   src = fetchurl {
     url = "https://pub.mate-desktop.org/releases/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
-    sha256 = "WVns49cRjhBmWfZNIC0O0XY60Qu7ul0qzYy/ui45lPE=";
+    sha256 = "qorflYk0UJOlDjCyft5KeKJCHRcnwn9GX8h8Q1llodQ=";
   };
 
   nativeBuildInputs = [
···
   ];
 
   buildInputs = [
-    adwaita-icon-theme
     enchant
     gtksourceview4
     libpeas