Use `Registry::crate_siouy

Signed-off-by: Jiahao XU <30436523+NobodyXu@users.noreply.github.com>

crates/binstalk/src/ops/resolve.rs

@@ -496,17 +496,7 @@ impl PackageInfo {
                         .fetch_crate_matched(client, &name, version_req),
                 )
                 .await?,
-                {
+                opts.registry.crate_source()?,
-                    let registry = format!("{}", opts.registry);
-                    if registry == "https://index.crates.io/" {
-                        CrateSource::cratesio_registry()
-                    } else {
-                        CrateSource {
-                            source_type: SourceType::Registry,
-                            url: MaybeOwned::Owned(Url::parse(&registry)?),
-                        }
-                    }
-                },
             ),
         };