Show the number of `huggingface_hub` warnings in CI report
# What does this PR do?

Show the number of `huggingface_hub` warnings in CI report, as discussed in #22051

Will be shown like below

<img width="488" alt="Screenshot 2023-03-09 134910" src="https://user-images.githubusercontent.com/2521628/224050100-90c1477a-c33f-485e-85e1-ec648cbb4f91.png">

_The documentation is not available anymore as the PR was closed or merged._