[Feature]: Pin vLLM process to the right NUMA Region

[Drice1999]

Changes:

• Add method set_cpu_affinity in vllm/platforms/cuda.py
• Call set_cpu_affinity after the process is ready (both in vllm/executor/multiproc_worker_utils.py and vllm/worker/worker_base.py)

FIX #13855

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[mergify[bot]]

This pull request has merge conflicts that must be resolved before it can be merged. Please rebase the PR, @Drice1999.

https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/syncing-a-fork

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This pull request has been automatically marked as stale because it has not had any activity within 90 days. It will be automatically closed if no further activity occurs within 30 days. Leave a comment if you feel this pull request should remain open. Thank you!

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This pull request has been automatically closed due to inactivity. Please feel free to reopen if you intend to continue working on it. Thank you!