[Bug]: Can't export playground code to a GitHub repo

### Problem description

I have this private playground(`narrow-gecko-49`) that'd like to export to a GitHub so that i can link another repo to the project. Cannot delete because i have already set env vars to the project and as we know, Deno Deploy doesn't make easy to import variables.
When i tap on the export button either inside the playground or project settings, it fails but the repo gets created. I tried it 3x and same thing happen.

First time it happened was yesterday inside the playground but i didn't pay much attention to since inside repo, the deploy bot has already queued the deployment so i went ahead to clone the repo locally and made some changes.

It's been 19hours since the repo was created and the deployment is still pending

This morning, I have noticed that it works with new playgrounds but not this particular one

### Steps to reproduce

1. Go to https://dash.deno.com/account/projects
2. Create a new playground code
3. Create a simple api route with `npm:hono`
4. Save and deploy the code
5. Export

### Expected behavior

The export should be successful and deployment should work

### Environment

_No response_

### Possible solution

_No response_

### Additional context

_No response_

Start by reproducing the export flow from the dashboard project page using a new playground, an npm:hono API route, and deployment, then compare it with the named playground narrow-gecko-49. Check whether the GitHub repository creation, export completion, and deploy-bot queue each finish successfully; done means export reports success and deployment is no longer pending.

Written by the indexing model from the issue text.