Sets metadata as POD

Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>

crates/bevy_color/src/linear_rgba.rs

@@ -319,7 +319,7 @@ impl encase::ShaderType for LinearRgba {
         encase::private::Metadata {
             alignment,
             has_uniform_min_alignment: false,
-            is_pod: false,
+            is_pod: true,
             min_size: size,
             extra: (),
         }