🚀 feat(data): added ground truth masks to VAD dataset

[abc-125]

📝 Description

Added ground truth masks to the VAD dataset (I am the author of the original dataset).

✨ Changes

• Replaced link and hashsum in src/anomalib/data/datamodules/image/vad.py
• Added ground truth masks to src/anomalib/data/datasets/image/vad.py
• Updated tests in tests/helpers/data.py

Select what type of change your PR is:

• 🚀 New feature (non-breaking change which adds functionality)
• 🐞 Bug fix (non-breaking change which fixes an issue)
• 🔄 Refactor (non-breaking change which refactors the code base)
• ⚡ Performance improvements
• 🎨 Style changes (code style/formatting)
• 🧪 Tests (adding/modifying tests)
• 📚 Documentation update
• 📦 Build system changes
• 🚧 CI/CD configuration
• 🔧 Chore (general maintenance)
• 🔒 Security update
• 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)

✅ Checklist

Before you submit your pull request, please make sure you have completed the following steps:

• 📚 I have made the necessary updates to the documentation (if applicable).
• 🧪 I have written tests that support my changes and prove that my fix is effective or my feature works (if applicable).
• 🏷️ My PR title follows conventional commit format.

For more information about code review checklists, see the Code Review Checklist.

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

❌ Patch coverage is 80.00000% with 2 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/anomalib/data/datasets/image/vad.py	80.00%	2 Missing ⚠️

📢 Thoughts on this report? Let us know!

[ashwinvaidya17]

Thanks for the contribution