Use logger.info instead of print to emit a logging message in hub.py

[hkiyomaru]

What does this PR do?

I found a line that uses the print method to emit a logging message in transformers/utils/hub.py. When I was developing a CLI app that outputs results in a specific format to stdout, this line emitted a logging message to stdout, resulting in an error. This PR fixes the line to use the logger.info method to emit the message instead.

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[HuggingFaceDocBuilderDev]

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

[sgugger]

I don't see why not, thanks for your contribution!