update ernie model card

[jzhang533]

What does this PR do?

Replaced the previous model card for ERNIE by the standardized model card introduced in issue #36979

Links to recent introduced ERNIE 4.5 and ERNIE 4.5 MOE models are also added in this model card.

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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  here are tips on formatting docstrings.
• Did you write any new necessary tests?

Who can review?

@stevhliu

[ArthurZucker]

Thanks!

[HuggingFaceDocBuilderDev]

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