Encounter 401 when call `download_and_cache`.

Hello,

I noticed that in this line of code https://github.com/HumanSignal/label-studio-sdk/blob/855b393d63e26a750a1e0ecad8a616313afa9f4a/src/label_studio_sdk/_extensions/label_studio_tools/core/utils/io.py#L233, the `Authorization` header uses the `Token` scheme. However, according to the [documentation](https://labelstud.io/guide/api.html#Authenticate-to-the-API), the correct scheme should be `Bearer`.

I tried the following command using `Token`:

```bash
curl -X GET / -H 'Authorization: Token '
```

And received this response:

```json
{
"id": "581f9ced-c880-42c6-af7b-6e1851367db6",
"status_code": 401,
"version": "1.19.0",
"detail": "Invalid token.",
"exc_info": null
}
```

But when I switched to using `Bearer`:

```bash
curl -X GET / -H 'Authorization: Bearer '
```

It seemed to work correctly (though I received a warning about binary output, which is expected).

So my question is:
Should the SDK be using `Token` in the `Authorization` header, or is `Bearer` the correct and intended format?

Thanks in advance!