Add a job to a github action to download screenshots of failed tests

[ozovalihasan]

Description

If a system fails, a screenshot is taken. But these screenshots are not accessible if these tests are run by Github Actions. So, a job is added to download these screenshots.

Related Issue

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Type of Change

• 📚 Examples / docs / tutorials / dependencies update
• 🔧 Bug fix (non-breaking change which fixes an issue)
• 🥂 Improvement (non-breaking change which improves an existing feature)
• 🚀 New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 🔐 Security fix

Checklist

• I've written tests (if applicable) for all new methods and classes that I created. (rake test)
  -- No need to test
• I've added documentation as necessary so users can easily use and understand this feature/fix.
  -- No need to document