Test: Resources.packed (from #9090) in the raw-texture test

Co-Authored-By: Claude Opus 5.5 <[email protected]>

crates/horizon-client-render/src/gfx/pack_post.rs

@@ -4901,6 +4901,7 @@ mod tests {
             released: std::cell::Cell::new(("", 0)),
             stand_ins: &stand_ins,
             shadow_linear: 0,
+            packed: [None; BUFFERS],
         };
         let (_, samplers, ..) = bindings(
             device.features(),