Check Google DNS for is_online()

[glenn-jocher]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Improvements in code coverage reporting and online connectivity check for Ultralytics projects.

📊 Key Changes

• Adjusted the verbosity level during the benchmarking of the Segmentation Model in CI workflows.
• Enhanced the online status check logic to test connectivity against multiple DNS servers (Cloudflare and Google).

🎯 Purpose & Impact

• Benchmarking tweak: Slight reduction in logging verbosity during testing aims to streamline the CI process and potentially reduce log clutter, making it easier to spot important details.
• Connectivity check enhancement: The addition of an additional DNS server for online status checks improves reliability. This ensures that the software can reliably detect internet connectivity by checking against two major DNS services, reducing the chances of a false offline status due to a single DNS server being unreachable.
• User impact: These updates are mostly under-the-hood, but they contribute to more robust and efficient development practices for Ultralytics projects. Users might not see immediate changes in usage, but these improvements support the goal of delivering stable and reliable software by enhancing the quality assurance processes. 🚀