Allowed-locations: Exclude Microsoft.AzureActiveDirectory/guestusages

#### Details of the scenario you tried and the problem that is occurring
Assigned the policy definition "/providers/microsoft.authorization/policydefinitions/e56962a6-4747-49cd-b67b-bf8b01975c4c" to our intermediate root tenant group and reviewed compliance. Resource of type Microsoft.AzureActiveDirectory/guestusages (Microsoft Entra External ID MAU) shows as non-compliant because it has the region 'Europe' which can't be selected as a value of the parameter 'listOfAllowedLocations' because it is not included in the 'strongType: location'.

Policy definition: /providers/microsoft.authorization/policydefinitions/e56962a6-4747-49cd-b67b-bf8b01975c4c

#### Verbose logs showing the problem
N/A

#### Suggested solution to the issue
Exclude Microsoft.AzureActiveDirectory/guestusages by adding the following lines to the policyRule block:
`{
"field": "type",
"notEquals": "Microsoft.AzureActiveDirectory/guestusages"
}`

#### If policy is Guest Configuration - details about target node
N/A

Locate policy definition e56962a6-4747-49cd-b67b-bf8b01975c4c in the repository and inspect its policyRule block. Add the type exclusion for Microsoft.AzureActiveDirectory/guestusages, then verify that this resource is no longer evaluated against listOfAllowedLocations while other resources still are.

Written by the indexing model from the issue text.