fix: remove usage of vllm to get device uuid and instead use nvidia-m…

[parthchadha]

…l-py library to get device uuid

What does this PR do ?

Removes the use of vllm to get uuid and instead relies on nvidia-ml-py library (official nvml library) to get uuid information. This allows us to not make vllm a core dependency of reinforcer.

Issues

Closes #101

Usage

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Additional Information

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[terrykong]

Closes #101