Make Codecov upload best effort

[glenn-jocher]

Summary\n- make the Codecov upload step non-blocking\n- keep existing coverage files, OIDC, flags, and plugins settings\n\n## Validation\n- ruby -e 'require "yaml"; YAML.load_file(".github/workflows/ci.yml")'\n- git diff --check

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Improves CI reliability by making Codecov coverage uploads non-blocking ✅

📊 Key Changes

• Added continue-on-error: true to the Codecov upload step in GitHub Actions.
• Changed Codecov setting fail_ci_if_error from true to false.
• Keeps coverage reporting enabled while preventing external upload issues from failing the entire CI pipeline.

🎯 Purpose & Impact

• Reduces false CI failures caused by temporary Codecov outages, network issues, or upload errors 🚀
• Helps developers focus on actual test and code failures instead of third-party service problems.
• Maintains visibility into test coverage without making it a required gate for PR success 📈

[UltralyticsAssistant]

👋 Hello @glenn-jocher, thank you for submitting a ultralytics/template 🚀 PR! This automated message confirms we received your contribution, and an Ultralytics engineer will assist with review soon. To ensure a seamless integration of your work, please review the following checklist:

• ✅ Define a Purpose: Clearly explain the purpose of your fix or feature in your PR description, and link to any relevant issues. Ensure your commit messages are clear, concise, and adhere to the project's conventions.
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• ✅ Minimize Changes: Limit your changes to the minimum necessary for your bug fix or feature addition. "It is not daily increase but daily decrease, hack away the unessential. The closer to the source, the less wastage there is." — Bruce Lee

For more guidance, please refer to our Contributing Guide. Don't hesitate to leave a comment if you have any questions. Thank you for contributing to Ultralytics! 🚀

[UltralyticsAssistant]

🔍 PR Review

_{Made with ❤️ by Ultralytics Actions}

No issues found. The workflow change is minimal and aligns with the PR goal of making Codecov uploads best-effort without altering the existing coverage configuration.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!

[UltralyticsAssistant]

🚀 Merged — thank you @glenn-jocher for improving CI reliability!

“The impediment to action advances action. What stands in the way becomes the way.” — Marcus Aurelius

This update turns a common CI obstacle into a smoother workflow by keeping Codecov reporting enabled while preventing temporary external upload failures from blocking valid PRs. It helps contributors stay focused on real test and code issues, reduces false negatives, and keeps development moving with greater confidence.

Appreciate the thoughtful improvement! 🙌