fix(offline_download): prevent infinite retry on status update failure

[sdvcrx]

Description / 描述

代码原意应该是失败5次后就退出，但因为代码顺序问题，导致 t.tool.Status(t) 失败超过5次后不会自动退出，出现无限次重试。

Motivation and Context / 背景

错误日志：

ERRO[2026-03-05 17:03:05] failed to get status of pyGVF4hJtjt7kHyQtl878, retried 1848 times
ERRO[2026-03-05 17:03:08] failed to get status of 51FeEG1KM_tYLLond7A2u, retried 5940 times
ERRO[2026-03-05 17:03:08] failed to get status of _n5JQoHVyoUV2cXhJNOZd, retried 1850 times
ERRO[2026-03-05 17:03:08] failed to get status of UttGaFfIZrAjqabQ1PKsR, retried 1849 times
ERRO[2026-03-05 17:03:08] failed to get status of pyGVF4hJtjt7kHyQtl878, retried 1849 times

How Has This Been Tested? / 测试

Checklist / 检查清单

• I have read the CONTRIBUTING document.
  我已阅读 CONTRIBUTING 文档。
• I have formatted my code with go fmt or prettier.
  我已使用 go fmt 或 prettier 格式化提交的代码。
• I have added appropriate labels to this PR (or mentioned needed labels in the description if lacking permissions).
  我已为此 PR 添加了适当的标签（如无权限或需要的标签不存在，请在描述中说明，管理员将后续处理）。
• I have requested review from relevant code authors using the "Request review" feature when applicable.
  我已在适当情况下使用"Request review"功能请求相关代码作者进行审查。
• I have updated the repository accordingly (If it’s needed).
  我已相应更新了相关仓库（若适用）。
  • OpenList-Frontend #XXXX
  • OpenList-Docs #XXXX

[xrgzs]

之前被刷过，确实存在这个问题，LGTM