Failed to mirror the GitHub repository, error information is shown in the screenshot. The same problem occurs when operating via Git.

### Gitea Version

1.27.2

### What happened?

<img width="1302" height="157" alt="Image" src="https://github.com/user-attachments/assets/7a60100d-8033-4749-a2d6-296369906f3b" />

### How are you running Gitea?

_No response_