Shrink Dist from 352 to 288 bytes (#10389)

Found this when looking at #10385. Since we're constructing a lot of
`Dist`s, we should keep it small.

crates/uv-dev/src/wheel_metadata.rs

@@ -33,7 +33,7 @@ pub(crate) async fn wheel_metadata(args: WheelMetadataArgs) -> Result<()> {
         .wheel_metadata(
             &BuiltDist::DirectUrl(DirectUrlBuiltDist {
                 filename,
-                location: archive.url,
+                location: Box::new(archive.url),
                 url: args.url,
             }),
             &capabilities,