Updating Portal Accelerator MDFC VM Vulnerability Assessment to use mdeTVM by default

[Springstone]

Overview/Summary

Updating Portal Accelerator MDFC VM Vulnerability Assessment to use mdeTVM by default

This PR fixes/adds/changes/removes

1. Changed the recommended default to Microsoft Defender vulnerability management:

Breaking Changes

1. N/A

Testing Evidence

As above

Testing URLs

Azure Public

As part of this Pull Request I have

• Checked for duplicate Pull Requests
• Associated it with relevant issues, for tracking and closure.
• Ensured my code/branch is up-to-date with the latest changes in the main branch
• Performed testing and provided evidence.
• Ensured contribution guidance is followed.
• Updated relevant and associated documentation.
• Updated the "What's New?" wiki page (located: /docs/wiki/whats-new.md)

[jtracey93]

For completeness lets also update these:

• https://github.com/Springstone/Enterprise-Scale/blob/31505/eslzArm/eslzArm.json#L143
• https://github.com/Springstone/Enterprise-Scale/blob/31505/eslzArm/managementGroupTemplates/policyAssignments/DINE-MDFCConfigPolicyAssignment.json#L57

[Springstone]

For completeness lets also update these:

• https://github.com/Springstone/Enterprise-Scale/blob/31505/eslzArm/eslzArm.json#L143
• https://github.com/Springstone/Enterprise-Scale/blob/31505/eslzArm/managementGroupTemplates/policyAssignments/DINE-MDFCConfigPolicyAssignment.json#L57

I don't know what I was thinking... wow. Sorry about that. All updated.