@remotion/renderer: Make native frame count twice towards memory

As empirically tested on Lambda, those frames take more memory than their bare size

packages/renderer/rust/scalable_frame.rs

@@ -134,7 +134,7 @@ impl ScalableFrame {
         }
         match self.native_frame {
             None => {}
-            Some(ref frame) => size = frame.size,
+            Some(ref frame) => size = frame.size * 2,
         }
 
         size