fix repo-files CLI example

[Wauplin]

Fix #2416

huggingface-cli repo-files <repo_id> delete *

is wrong and must be replaced by

huggingface-cli repo-files <repo_id> delete "*"

Problem is that the shell lists all local files and add it to the executed command line. Nothing much we can do python-side unfortunately.

[HuggingFaceDocBuilderDev]

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[Wauplin]

Thanks for spotting this @severo !