get https://app.pennylane.com/api/external/v2/changelogs/supplier_invoices
Returns the list of changes based on the provided start_date.
If no start_date is provided it returns the oldest set of recorded changes.
Changes for the last 4 weeks are retained. The items will be returned using
processed_at in ASC order (oldest first).
This endpoint requires one of the following scopes:
supplier_invoices:all,supplier_invoices:readonly