convert buffer type explicitly

Author: koron

2025/src/pages/og.png.ts

@@ -1,7 +1,8 @@
 import { ogImage } from "@/components/OgImage";
 
 export async function GET() {
-  const body = await ogImage();
+  const img = await ogImage();
+  const body = new Uint8Array(img).buffer;
 
   return new Response(body, {
     headers: {