Enable Swift formatting in Ultralytics Actions

[glenn-jocher]

@ambitious-octopus @john-rocky hey guys, I'm enabling Swift formatting here to help add consistency to the PRs that I started reviewing.

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Added Swift formatting to the GitHub Actions workflow in the iOS YOLO app repository.

📊 Key Changes

• Included swift: true in the .github/workflows/format.yml file to enable Swift code formatting.

🎯 Purpose & Impact

• Improved Code Quality: Ensures that Swift code in the repository is consistently formatted, making it cleaner and easier to read.
• Reduced Errors: Consistent formatting can help in catching syntax issues early, reducing potential bugs.
• Team Efficiency: Streamlines the code review process by maintaining a uniform code style across contributions.

🚀 This update enhances code maintainability and collaboration for iOS development in the YOLO app project.