load_dataset gives FileNotFoundError on imagenet-1k if license is not accepted on the hub
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Hi, thanks for the feedback! Would it help to add a tip or note saying the dataset is gated and you need to accept the license before downloading it?
### Describe the bug

When calling ```load_dataset('imagenet-1k')``` FileNotFoundError is raised, if not logged in and if logged in with huggingface-cli but not having accepted the licence on the hub. There is no error once accepting.

### Steps to reproduce the bug

```
from datasets import load_dataset

imagenet = load_dataset("imagenet-1k", split="train", streaming=True)

FileNotFoundError: Couldn't find a dataset script at /content/imagenet-1k/imagenet-1k.py or any data file in the same directory. Couldn't find 'imagenet-1k' on the Hugging Face Hub either: FileNotFoundError: Dataset 'imagenet-1k' doesn't exist on the Hub
```
tested on a colab notebook.

### Expected behavior

I would expect a specific error indicating that I have to login then accept the dataset licence.

I find this bug very relevant as this code is on a guide on the [Huggingface documentation for Datasets](https://huggingface.co/docs/datasets/about_mapstyle_vs_iterable)

### Environment info

google colab cpu-only instance
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