[Misc] Fix pre-commit docstring style failure on main branch

[Isotr0py]

Purpose

• Fix ruff failure https://github.com/vllm-project/vllm/actions/runs/35175059305/job/105055144157 accidently introduced by [EC Connector] Add Metrics Collection #54960

Test Plan

Test Result

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Essential Elements of an Effective PR Description Checklist

• The purpose of the PR, such as "Fix some issue (link existing issues this PR will resolve)".
• The test plan, such as providing test command.
• The test results, such as pasting the results comparison before and after, or e2e results
• (Optional) The necessary documentation update, such as updating supported_models.md and examples for a new model.

[claude]

Claude Code Review

This pull request is from a fork — automated review is disabled. A repository maintainer can comment @claude review to run a one-time review.

[Isotr0py]

Suspended by #57283