fix(lint): sort flechette imports to unblock CI (release 0.7.3)

Biome organizeImports/format errors on src/arrow/impl-flechette/{index,
normalize-type}.ts have been failing the lint step — and thus ci.yml — on
every commit since the 0.7.2 release. Apply the auto-fix and rebuild dist
so main goes green and 0.7.3 can be published.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: rustyconover

bun.lock

@@ -3256,13 +3256,7 @@ async function buildDescribeBatch(protocolName, methods, serverId, protocolVersi
     hasHeaders.push(hasHeader);
     const headerIpc = method.headerSchema ? serializeSchema2(method.headerSchema) : null;
     headerSchemas.push(headerIpc);
-    let isExchange;
-    if (method.exchangeFn)
-      isExchange = true;
-    else if (method.producerFn)
-      isExchange = false;
-    else
-      isExchange = null;
+    const isExchange = null;
     isExchanges.push(isExchange);
     hashRows.push({
       name,
@@ -9569,4 +9563,4 @@ export {
   ARROW_CONTENT_TYPE
 };
 
-//# debugId=577B8BC5B26DC1B764756E2164756E21
+//# debugId=03000096478B827564756E2164756E21