backpedal a bit on caching

app/feed.atom/route.ts

@@ -1,3 +1,4 @@
+import { NextResponse } from "next/server";
 import { buildFeed } from "../../lib/helpers/build-feed";
 
 export const dynamic = "force-static";
@@ -5,7 +6,7 @@ export const dynamic = "force-static";
 export const GET = async () => {
   const feed = await buildFeed();
 
-  return new Response(feed.atom1(), {
+  return new NextResponse(feed.atom1(), {
     headers: {
       "content-type": "application/atom+xml; charset=utf-8",
     },