Pass through additional arguments from HfApi download utils

[schmrlng]

This PR

• Passes through the currently unused dry_run argument (bug) and also adds the tqdm_class argument from HfApi.hf_hub_download -> hf_hub_download.
• Adds the dry_run argument from HfApi.snapshot_download -> snapshot_download and also passes headers.

[Wauplin]

Thanks a lot for noticing and fixing this! I just realized we haven't added the dry_run parameter to HfApi.snapshot_download either (see here compared to here). Would you mind fixing it as well so we're all good? :)

[HuggingFaceDocBuilderDev]

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[schmrlng]

Thanks a lot for noticing and fixing this! I just realized we haven't added the dry_run parameter to HfApi.snapshot_download either (see here compared to here). Would you mind fixing it as well so we're all good? :)

Sure, done -- I've also passed through headers=self.headers there (let me know if this is undesired, but it's similar to hf_hub_download) and tried to fix the tests (we'll see what CI thinks; locally seems to work).