material-kwin-decoration: unstable-2021-10-28 -> unstable-2022-01-19, add update script

pkgs/data/themes/material-kwin-decoration/default.nix

···
 , kwindowsystem
 , kiconthemes
 , kwayland
+, unstableGitUpdater
 }:
 
 mkDerivation rec {
   pname = "material-kwin-decoration";
-  version = "unstable-2021-10-28";
+  version = "unstable-2022-01-19";
 
   src = fetchFromGitHub {
     owner = "Zren";
     repo = "material-decoration";
-    rev = "cc5cc399a546b66907629b28c339693423c894c8";
-    sha256 = "sha256-aYlnPFhf+ISVe5Ycryu5BSXY8Lb5OoueMqnWQZiv6Lc=";
+    rev = "973949761f609f9c676c5b2b7c6d9560661d34c3";
+    sha256 = "sha256-n+yUmBUrkS+06qLnzl2P6CTQZZbDtJLy+2mDPCcQz9M=";
   };
 
-  postPatch = ''
-    substituteInPlace CMakeLists.txt \
-      --replace "-Werror" ""
-  '';
-
   nativeBuildInputs = [ cmake extra-cmake-modules ];
 
   buildInputs = [
···
     kwayland
   ];
 
+  passthru = {
+    updateScript = unstableGitUpdater { };
+  };
+
   meta = with lib; {
     description = "Material-ish window decoration theme for KWin";
     homepage = "https://github.com/Zren/material-decoration";
     license = licenses.gpl2;
-    maintainers = [ maintainers.nickcao ];
+    maintainers = with maintainers; [ nickcao ];
   };
 }