[Bugfix] Fix torch_xla which can't handle None seed introduced in #14…

[yarongmu-google]

…274 for V0 (V1 was fixed earlier)

FIX #14274

[github-actions]

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[ManfeiBai]

Thanks, LGTM

[khluu]

Can you help fix the precommit errors here: https://github.com/vllm-project/vllm/actions/runs/13847341623/job/38748379763?pr=14520#step:6:1432
You can also setup precommit so it runs whenever you commit to branch: https://docs.vllm.ai/en/latest/contributing/overview.html#testing