scion: clean up & add updateScript and NGI team (#422630)

pkgs/by-name/sc/scion/package.nix

@@ -2,21 +2,18 @@
   lib,
   buildGoModule,
   fetchFromGitHub,
+  nix-update-script,
   nixosTests,
 }:
-let
-  version = "0.12.0";
-in
-
-buildGoModule {
+buildGoModule (finalAttrs: {
   pname = "scion";
 
-  inherit version;
+  version = "0.12.0";
 
   src = fetchFromGitHub {
     owner = "scionproto";
     repo = "scion";
-    rev = "v${version}";
+    tag = "v${finalAttrs.version}";
     hash = "sha256-J51GIQQhS623wFUU5dI/TwT2rkDH69518lpdCLZ/iM0=";
   };
 
@@ -43,18 +40,22 @@ buildGoModule {
 
   tags = [ "sqlite_mattn" ];
 
-  passthru.tests = {
-    inherit (nixosTests) scion-freestanding-deployment;
+  passthru = {
+    tests = {
+      inherit (nixosTests) scion-freestanding-deployment;
+    };
+    updateScript = nix-update-script { };
   };
 
-  meta = with lib; {
+  meta = {
     description = "Future Internet architecture utilizing path-aware networking";
     homepage = "https://scion-architecture.net/";
-    platforms = platforms.unix;
-    license = licenses.asl20;
-    maintainers = with maintainers; [
+    platforms = lib.platforms.unix;
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [
       sarcasticadmin
       matthewcroughan
     ];
+    teams = with lib.teams; [ ngi ];
   };
-}
+})