[Bug]: Cannot find private modules, lack of `DENO_AUTH_TOKENS`

### Problem description

I am trying to deploy my Fresh app and i have a custom GitHub action for it, see:
```yml
name: Deploy

on:
push:
branches: [main]
pull_request:
branches: [main]

env:
DENO_AUTH_TOKENS: ${{ secrets.DENO_AUTH_TOKENS }}

jobs:
deploy:
runs-on: ubuntu-latest

permissions:
id-token: write
contents: read

steps:
- name: Clone repository
uses: actions/checkout@v3

- name: Install Deno
uses: denoland/setup-deno@v1
with:
deno-version: v1.36.x

- name: Build step
run: deno task build

- name: Upload to Deno Deploy
uses: denoland/deployctl@v1
with:
project: my-project-name
entrypoint: main.ts
root: .
```

Problem is as you can see I have the `DENO_AUTH_TOKENS` secret set. Build is working correctly (it wasn't before having that env) but the deploy step does not work. I assume Deno Deploy does not export that env in the machine that it downloads the dependency when downloading modules:
> Error: The deployment failed: HTTP status client error (404 Not Found) for url (https://raw.githubusercontent.com/dogukanakkaya/...)

I also tried to set that variable in Deno Deploy dashboard, project settings page. But it does not allow you to set any env variable name that starts with `DENO_` so I could not do that either.

### Steps to reproduce

Just try to deploy a Deno application that imports a private module.

### Expected behavior

It should either get and set the same environment variables from GitHub actions or should allow to have it set manually from dashboard.

### Environment

- Deno version: v1.36.4

### Possible solution

_No response_

### Additional context

_No response_