Fix is_url('https://ultralytics.com')

[glenn-jocher]

Failing on missing path, i.e. no 'www.'

Signed-off-by: Glenn Jocher glenn.jocher@ultralytics.com

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Optimization of URL validation in download utility.

📊 Key Changes

• Simplified the URL validation check by removing the requirement that the URL must have a path component.

🎯 Purpose & Impact

• Improves URL checking logic to consider URLs without paths as valid.
• May prevent potential bugs related to URL validation and ensure that more types of URLs can be used without issues.
• Users might experience enhanced flexibility and fewer errors when interacting with functions that verify URLs. 🌐✅