Fix the issue of setting timeout exceptions in the HTTP alert plugin,…

[maomao199691]

… where the unit in the code is not consistent with the page.

Purpose of the pull request

The purpose of this pull request is to address the issue where the timeout duration (in seconds) for HTTP alerts is not taking effect in the code.

Brief change log

The modifications have been made in the HTTP alarm plugin

Verify this pull request

This change added tests and can be verified as follows:

• Manually verified the change by testing locally. -->

before modification：

<img width="788" height="796" alt="image" src="https://github.com/user-attachments/assets/73ef91a5-cbdc-44b3-bf36-4276c8b2a8f9" /

modified：

[boring-cyborg]

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[SbloodyS]

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