Container doesn't start anymore

I tried to change ` "@cloudflare/sandbox": "*",` to ` "@cloudflare/sandbox": "^0.7.20",` in package.json because the bot told me it could fix that it doesn't stay up all the time.

Then the worker in front of the container just started failing with

```
There is no container instance that can be provided to this Durable Object, try again later
```

I reverted the commit but the error persists and the bot doesn't work anymore :(