blender: add updateScript

Change srcs -> src otherwise nix-update does not update the hash; we
don’t need srcs anymore, anyway, as there is now only one.

pkgs/by-name/bl/blender/package.nix

@@ -53,6 +53,7 @@
   llvmPackages,
   makeWrapper,
   mesa,
+  nix-update-script,
   openUsdSupport ? !stdenv.hostPlatform.isDarwin,
   openal,
   opencollada-blender,
@@ -114,7 +115,7 @@ stdenv'.mkDerivation (finalAttrs: {
   pname = "blender";
   version = "4.4.1";
 
-  srcs = fetchzip {
+  src = fetchzip {
     name = "source";
     url = "https://download.blender.org/source/blender-${finalAttrs.version}.tar.xz";
     hash = "sha256-5MsJ7UFpwwtaq905CiTkas/qPYOaeiacSSl3qu9h5w0=";
@@ -414,6 +415,12 @@ stdenv'.mkDerivation (finalAttrs: {
         }], check=True)  # noqa: E501
       '';
     };
+
+    updateScript = nix-update-script {
+      extraArgs = [
+        "--url=https://projects.blender.org/blender/blender"
+      ];
+    };
   };
 
   meta = {