[Misc] Redact ray runtime env before logging

[ruisearch42]

Purpose

Avoid logging sensitive env vars: https://github.com/vllm-project/vllm/pull/22040/files#r2404671920

Test Plan

Test Result

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• The purpose of the PR, such as "Fix some issue (link existing issues this PR will resolve)".
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[gemini-code-assist]

Code Review

This pull request introduces a security enhancement by redacting sensitive environment variables from the Ray runtime environment before they are logged. The implementation correctly creates a sanitized copy of the runtime environment for logging purposes, ensuring that the original configuration remains unmodified for subsequent use. The change is well-contained and effectively addresses the potential for information leakage in logs. The code is clean and correct.

[chatgpt-codex-connector]

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