Typo in Prompt_Engineering_with_Llama_3.ipynb

[connortreacy]

What does this PR do?

Fixes a typo in the Prompt Engineering notebook to correctly name Groq as the service being called.

Feature/Issue validation/testing

Please describe the tests that you ran to verify your changes and relevant result summary. Provide instructions so it can be reproduced.
Please also list any relevant details for your test configuration.

• Looked at the updated notebook to confirm changes were visible

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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• Did you write any new necessary tests?

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