Fix reset-project script for E2E deploy tests (#89693)
Our reset script was failing from invalid body shape:
```sh
Error: Create project failed. Got status: 400, {"error":{"code":"bad_request","message":"Invalid request: should NOT have additional property `env`."}}
```
x-ref:
https://github.com/vercel/next.js/actions/runs/21793009770/job/62875798461
x-ref:
https://github.com/vercel/next.js/actions/runs/21807482052/attempts/1
