Log message for timeout error when loading model artefacts

[gertln]

Earth2Studio Pull Request

Description

Added log message with hint to timeout env variable for timeouts that happens during loading model artefacts. It will help new users to solve timeout problems that happen frequently with large models such as SFNO.

Checklist

• [x] I am familiar with the Contributing Guidelines.
• [ ] New or existing tests cover these changes.
• [x] The documentation is up to date with these changes.
• [ ] The CHANGELOG.md is up to date with these changes.
• [ ] An issue is linked to this pull request.

Dependencies