Retrieves group templates from the CIPP API.
The Get-CIPPGroupTemplates function retrieves group templates from the CIPP API. It can retrieve all group templates or a specific template based on the provided TemplateID.
Specifies the ID of the group template to retrieve. If not provided, all group templates will be retrieved.
PS > Get-CIPPGroupTemplates -TemplateID "12345"
PS > Get-CIPPGroupTemplates