[Bug]: logs showing the deployment still in preview after promote to production. Crons not showed in production, maybe for the same reason

### Problem description

I have promoted my deployment to production and I see a message in the logs as the deployment still in preview.

I do not see the crons I have in my code and I think is related with this issue.


### Steps to reproduce

1. create a simple deno project with a cron inside
2. deploy to deno deploy with `deployctl deploy`

### Expected behavior

When a deployment is promoted to production their crons should appear in its corresponding tab and the logs should't show the message

> Crons are not supported for preview deployments. Cron jobs will not be executed in this context.

### Environment

_No response_

### Possible solution

_No response_

### Additional context

```typescript
// NOTE: Crons should be defined at top level module scope
Deno.cron("sample cron", "* * * * *", () => {
console.log(`Hello at ${new Date(Date.now()).toString()}`);
});
import * as supabase_js from "jsr:@supabase/supabase-js";
const BOOK_ROUTE = new URLPattern({ pathname: "/books/:id" });
import { createClient } from "jsr:@supabase/supabase-js@2";

function handler(req: Request): Response {
Deno.cron("sample cron", "*/10 * * * *", () => {
console.log("cron job executed every 10 minutes");
});
const match = BOOK_ROUTE.exec(req.url);
if (match) {
const id = match.pathname.groups.id;
return new Response(`Book ${id}`);
}
return new Response("Not found (try /books/1)", {
status: 404,
});
}
Deno.serve(handler);

console.log("HOLA fuera del CRON");
```