Fix Skipped Tests and Update AI Ethics Module

[devin-ai-integration[bot]]

This pull request addresses the following changes and fixes:

• Resolved skipped tests in the ai_ethics module, specifically in test_security_integration.py.
• Updated the AdvancedSecurityAgent class to include the _get_fairness_metrics method.
• Ensured all tests pass successfully without any skips or errors.
• Improved the multi_modal_learning.py to handle tensor inputs correctly.

All changes have been tested and verified to ensure compatibility and functionality.

This Devin run was requested by kasinadhsarma.

If you have any feedback, you can leave comments in the PR and I'll address them in the app!