budgie-screensaver: modernize

pkgs/by-name/bu/budgie-screensaver/package.nix

@@ -12,6 +12,7 @@
   linux-pam,
   meson,
   ninja,
+  nix-update-script,
   pkg-config,
   systemd,
   wrapGAppsHook3,
@@ -26,7 +27,7 @@ stdenv.mkDerivation (finalAttrs: {
     owner = "BuddiesOfBudgie";
     repo = "budgie-screensaver";
     rev = "v${finalAttrs.version}";
-    sha256 = "sha256-N8x9hdbaMDisTbQPJedNO4UMLnCn+Q2hhm4udJZgQlc=";
+    hash = "sha256-N8x9hdbaMDisTbQPJedNO4UMLnCn+Q2hhm4udJZgQlc=";
   };
 
   nativeBuildInputs = [
@@ -51,12 +52,17 @@ stdenv.mkDerivation (finalAttrs: {
 
   env.NIX_CFLAGS_COMPILE = "-D_POSIX_C_SOURCE";
 
+  passthru = {
+    updateScript = nix-update-script { };
+  };
+
   meta = {
     description = "Fork of old GNOME Screensaver for purposes of providing an authentication prompt on wake";
     homepage = "https://github.com/BuddiesOfBudgie/budgie-screensaver";
+    changelog = "https://github.com/BuddiesOfBudgie/budgie-screensaver/releases/tag/v${finalAttrs.version}";
+    license = lib.licenses.gpl2Only;
+    maintainers = lib.teams.budgie.members;
     mainProgram = "budgie-screensaver";
     platforms = lib.platforms.linux;
-    maintainers = lib.teams.budgie.members;
-    license = lib.licenses.gpl2Only;
   };
 })