Feature/lab3

[Uiyrte]

Pull Request Template

Goal

Create a basic CI/CD workflow in GitHub Actions using the official quickstart.
Implement automatic push-triggering and manual triggering via workflow_dispatch.
Collect system information about the runner and document the results in labs/submission3.md.

Changes

• Added workflow file github-actions-demo.yml to .github/workflows/
• Triggers are configured: push and workflow_dispatch for manual launch
• Steps are added:
  • Checking the repository (actions/checkout)
  • Collecting information about the OS, CPU, memory, and disk (uname, lscpu, free, df)
• The file labs/submission3.md is updated with:
  • A link to the successful launch of the workflow
  • Fragments of execution logs
  • A YAML file and explanations for each step

Testing

• Workflow successfully started manually via GitHub UI
• All steps executed correctly, without errors
• System information is displayed in logs
• Verified that the workflow reacts to push and workflow_dispatch## Checklist

Checklist

• PR has a clear, descriptive title
• Documentation / README updated if needed
• No secrets or large temporary files included
• Task 1 done
• Task 2 done