修复hostloc获取ip的API失效导致签到失败问题

[lonelyman0108]

Summary by Sourcery

Bug Fixes:

• Fix the issue causing sign-in failures by updating the API used to fetch the IP address.

[sourcery-ai]

Reviewer's Guide by Sourcery

The PR fixes a sign-in failure issue by updating the IP address lookup API endpoint from ipify.org to ipw.cn. This change was necessary because the original API endpoint was no longer functioning properly.

Sequence diagram for IP address logging process

sequenceDiagram
    participant User
    participant Script
    participant API as IP API (ipw.cn)

    User->>Script: Run script
    Script->>API: GET https://4.ipw.cn/
    API-->>Script: Return IP address
    Script->>User: Log IP address

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File-Level Changes

Change	Details	Files
Updated the IP address lookup API endpoint	Replaced the deprecated ipify.org API endpoint with ipw.cn Maintained the same error handling and response processing logic	ck_hostloc.py

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[sourcery-ai]

Hey @lonelyman0108 - I've reviewed your changes - here's some feedback:

Overall Comments:

• Consider implementing a fallback mechanism with multiple IP lookup APIs to improve reliability
• Please ensure proper HTTPS certificate validation is implemented when making requests to the new API endpoint

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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