fix: app scoped role assignment not properly linking to AZApp

[mistahj67]

BED-4348

Adds workaround handling for app specific scoped role assignments. This ensures that downstream ingestion by Bloodhound will add edge to correct AZApp node

Implementation

Expanded directoryScope in ListAzureADRoleAssignments which provides the appId of the scoped app.
Hotswapped that in place for the directoryScopeId to be consumed downstream.

No changes needed to Bloodhound.

Testing

Ran collection locally pointing at Azure env with role assignment scoped to specific app and ensured that it was properly linked in Bloodhound.

Query: MATCH p = (:AZUser)-[:AZAppAdmin]->()