Make raises sections consistent in docstrings

[Wauplin]

Make all raises sections consistent in docstrings in huggingface_hub. Format looks like this:

    Raises:
        [`EnvironmentError`](https://docs.python.org/3/library/exceptions.html#EnvironmentError)
            If an upload failed for any reason
        [`ValueError`](https://docs.python.org/3/library/exceptions.html#ValueError)
            If the server returns malformed responses
        [`HTTPError`](https://requests.readthedocs.io/en/latest/api/#requests.HTTPError)
            If the LFS batch endpoint returned an HTTP error.

Made after a report from @mfuntowicz on slack (private) that docs don't always looks good (hf_hub_download example)

[HuggingFaceDocBuilderDev]

The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

[Wauplin]

Much better (https://moon-ci-docs.huggingface.co/docs/huggingface_hub/pr_2313/en/package_reference/file_download#huggingface_hub.hf_hub_download)

[mfuntowicz]

LGTM 👍🏻

[Wauplin]

Thanks for the reviews!