Accept normalized CLA signature comments

[glenn-jocher]

Valid CLA signature comments with trailing whitespace or surrounding Markdown currently never reach the normalized action matcher because the workflow gate requires exact equality.

This makes only the signature gate permissive. The recheck command remains exact, and the action still decides whether a single normalized line is a valid signature, so quoted or instructional text does not sign the CLA.

Related matcher fix: ultralytics/actions#894

Validation:

• actionlint .github/workflows/cla.yml
• npx prettier@3.8.5 --check .github/workflows/cla.yml

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Updated the CLA workflow gate to accept comments containing the normalized CLA signature text, allowing trailing whitespace or surrounding Markdown to reach the action matcher.

📊 Key Changes

• Replaced exact equality with contains() for the CLA signature comment check in .github/workflows/cla.yml.
• Kept the recheck command check exact.
• Left final signature validation to the action, which evaluates the normalized signature line.

🎯 Purpose & Impact

• CLA signature comments with surrounding Markdown or trailing whitespace can now trigger the signature workflow.
• Quoted or instructional text is not automatically treated as a signature because the action still performs the final normalized-line validation.

[UltralyticsAssistant]

👋 Hello @glenn-jocher, thank you for submitting a ultralytics/hub 🚀 PR! This automated message confirms your contribution was received, and an Ultralytics engineer will assist with the review. 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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[UltralyticsAssistant]

🔍 PR Review

_{Made with ❤️ by Ultralytics Actions}

LGTM. The workflow gate now admits comments containing the normalized signature text while preserving exact recheck handling; signature validity remains enforced by the CLA action.

[UltralyticsAssistant]

🎉 PR #1326 has been merged—thank you, @glenn-jocher!

“Great things are done by a series of small things brought together.” — Vincent van Gogh

This focused workflow improvement allows CLA comments with normalized signature text, trailing whitespace, or surrounding Markdown to reach the matcher while preserving exact recheck validation and final action checks.