update gobject, fix compiler errors

build.zig.zon

@@ -52,9 +52,10 @@
             .hash = "zf-0.10.3-OIRy8bKIAACV6JaNNncXA68Nw2BUAD9JVfQdzjyoZQ-J",
         },
         .gobject = .{
-            // ianprime0509/zig-gobject
-            .url = "https://deps.files.ghostty.org/gobject-12208d70ee791d7ef7e16e1c3c9c1127b57f1ed066a24f87d57fc9f730c5dc394b9d.tar.zst",
-            .hash = "gobject-0.2.2-AAAAAHy2bwGNcO55HX734W4cPJwRJ7V_HtBmok-H1X_J",
+            // https://github.com/jcollie/ghostty-gobject based on zig_gobject
+            // Temporary until we generate them at build time automatically.
+            .url = "https://github.com/jcollie/ghostty-gobject/releases/download/0.14.0-2025-03-11-16-1/ghostty-gobject-0.14.0-2025-03-11-16-1.tar.gz",
+            .hash = "gobject-0.2.0-Skun7H6DlQDWCiNQtdE5TXYcCvx7MyjW01OQe5M_n_jV",
         },
 
         // C libs

src/apprt/gtk/winproto/x11.zig

@@ -342,7 +342,7 @@ pub const Window = struct {
             &actual_format_return,
             &nitems_return,
             &bytes_after_return,
-            &prop_return,
+            @ptrCast(&prop_return),
         );
         if (code != c.Success) return error.RequestFailed;