feat(arm): add CKV_AZURE_191 to ensure that Managed identity provider is enabled for Azure Event Grid Topic

[RachelBorzi]

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PR Title

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feat(terraform): add CKV_AWS_123 to ensure that VPC Endpoint Service is configured for Manual Acceptance

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Description

Added new policy for - EventgridTopicIdentityProviderEnabled - CKV_AZURE_191 Fixes # (issue)

New/Edited policies (Delete if not relevant)

Description

policy to ensure that Managed identity provider is enabled for Azure Event Grid Topic

Fix

How does someone fix the issue in code and/or in runtime?

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [x] I have added tests that prove my feature, policy, or fix is effective and works
• [x] New and existing tests pass locally with my changes
• [ ] Any dependent changes have been merged and published in downstream modules