Revert "Make deploy workflow idempotent for PyPI release reruns"

[SpriteMisaka]

Sourcery 总结

CI：

• 恢复 PyPI 发布行为：当尝试上传已存在的软件包版本时失败。

Original summary in English

Summary by Sourcery

CI:

• Restore PyPI publish behavior that fails when attempting to upload an already-existing package version.

[sourcery-ai]

审查者指南（小型 PR 中折叠显示）

审查者指南

通过移除 skip-existing，部署工作流恢复为之前的 PyPI 发布行为。因此，当软件包版本已经存在时，重新运行发布流程将会失败，而不是将上传视为成功。

PyPI 发布重新运行行为的时序图

sequenceDiagram
    participant GitHubActions
    participant PyPI

    GitHubActions->>PyPI: Upload package
    alt Package version is new
        PyPI-->>GitHubActions: Upload succeeds
    else Package version already exists
        PyPI-->>GitHubActions: Upload fails
    end

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文件级变更

变更	详细信息	文件
恢复幂等的 PyPI 上传行为，使重复的发布尝试不再被静默跳过。	从 PyPI 发布操作中移除 skip-existing 选项，使已发布的软件包再次上传时恢复失败。	.github/workflows/python-publish.yml

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Original review guide in English

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

The deploy workflow is reverted to its previous PyPI publishing behavior by removing skip-existing, so rerunning a release will fail when the package version already exists instead of treating the upload as successful.

Sequence diagram for PyPI release rerun behavior

sequenceDiagram
    participant GitHubActions
    participant PyPI

    GitHubActions->>PyPI: Upload package
    alt Package version is new
        PyPI-->>GitHubActions: Upload succeeds
    else Package version already exists
        PyPI-->>GitHubActions: Upload fails
    end

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File-Level Changes

Change	Details	Files
Revert idempotent PyPI upload behavior so duplicate release attempts are no longer silently skipped.	Remove the skip-existing option from the PyPI publishing action, restoring upload failures for already-published distributions.	.github/workflows/python-publish.yml

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[Copilot]

🟢 Approval recommended

The workflow change is minimal, YAML-valid, and matches the stated intent to fail on attempts to republish an existing version.

Pull request overview

This PR reverts a previous change to the PyPI publish GitHub Actions workflow, restoring the behavior where publishing fails if the package version already exists on PyPI (i.e., non-idempotent release reruns).

Changes:

• Removed the skip-existing: true option from the PyPI publish action configuration to ensure uploads of an existing version fail.

File summaries

File	Description
.github/workflows/python-publish.yml	Removes skip-existing from the publish step to restore failure-on-duplicate PyPI upload behavior.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 0
• Review effort level: Lite

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[sourcery-ai]

你好——我已经审阅了你的更改，整体看起来很棒！

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Original comment in English

Hey - I've reviewed your changes and they look great!

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