New learning path: Deploy Arcee AFM-4.5B on AWS Graviton4

[juliensimon]

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This is the Arcee AI / AWS Graviton learning path discussed with Ayasha Ali and Tobias McBride.
I also have a GCP Axion version, which I'll submit once this PR has been reviewed. A lot of the content is very similar.

IMPORTANT NOTE: The AFM-4.5B model is not yet publicly available on Hugging Face. It will be in a few weeks.

This PR shouldn't be merged until then.

A couple of TO DOs before merging:

• Update the HF repository name
• Update perplexity numbers