Retrieves the phishing policies for a specific customer tenant.
The Get-CIPPPhishPolicies function retrieves the phishing policies for a specific customer tenant by making a REST API call to the "/api/listphishpolicies" endpoint.
The ID of the customer tenant for which to retrieve the phishing policies.
PS > Get-CIPPPhishPolicies -CustomerTenantID "contoso.onmicrosoft.com"