Sync GitHub workflows with upstream repository

[XuhuiZhou]

Description

This PR syncs the GitHub workflows from the upstream alshedivat/al-folio repository while preserving your custom workflows.

Changes

• Added all the GitHub workflows from the upstream repository
• Preserved your custom deploy workflows (deploy_ci.yml, deploy_fixed.yml)
• Added the upstream workflows to a separate directory (.github/workflows-upstream) for reference
• This approach allows you to use the upstream workflows while keeping your customizations

Benefits

• Ensures your repository has the latest workflows from the upstream repository
• Maintains your custom workflows that you've created for your specific needs
• Provides a clean way to sync only the workflows without affecting the rest of your codebase
• Keeps the upstream deploy.yml as a reference in case you want to incorporate any of its features

Testing

The workflows have been copied directly from the upstream repository and should work as expected. Your custom workflows remain unchanged.

[openhands-ai]

Looks like there are a few issues preventing this PR from being merged!

• GitHub Actions are failing:
  • Deploy site
  • Prettier code formatter

If you'd like me to help, just leave a comment, like

@OpenHands please fix the failing actions on PR #11

Feel free to include any additional details that might help me get this PR into a better state.

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