Update optimum-neuron vLLM image to 0.4.5

[dacorvo]

This pull request updates the configuration for the HuggingFace VLLM NeuronX image URI in huggingface-vllm-neuronx.json. The main change is the addition of support for version 0.4.5, along with updating the version alias to point to this new version.

Versioning and configuration updates:

• Updated the version_aliases mapping so that "0.4" now points to "0.4.5" instead of "0.4.4".
• Added a new configuration block for version "0.4.5", including supported Python version (py310), registry information for multiple AWS regions, tag prefix, repository name, container version, and supported SDK version.Issue #, if available:

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[Copilot]

Pull request overview

This PR adds support for optimum-neuron vLLM image version 0.4.5 in the HuggingFace VLLM NeuronX image URI configuration, and updates the 0.4 version alias to point to this new version.

Changes:

• Updated the 0.4 version alias from 0.4.4 to 0.4.5.
• Added a new 0.4.5 configuration block with the same regions, registry, SDK version, and container settings as 0.4.4, with an updated tag_prefix.

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[mohamedzeidan2021]

Apologies for closing, would you still like this to be merged ?