Fix auto tests

[ydshieh]

What does this PR do?

Some failures after #29112 due to the wrong Hub repo. being used

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[ArthurZucker]

Not 100% sure I understand what difference this makes as google-bert/bert-base-uncased exist?

[ydshieh]

@ArthurZucker

it exists, it's not the problem of the existing or not. It's we use

   model_name = "google-bert/bert-base-uncased"

but the check after it

   self.assertIsInstance(config, GPT2Config)

claim it is GPT2Config. And it fails as the claim is false obviously

It's just #29112 updated model_name while not update GPT2Config etc (or use the repo. corresponding to the original previous repo)

[ArthurZucker]

All good thanks for the explanation!