Check if the state of peering connections in the cloud has changed

Triggers an asynchronous refresh of the peering connection states for an organization VPC. Checks the state of the peering connections in the cloud provider and updates them in Aiven. To confirm the refresh has completed, retrieve the organization VPC using GET /organization/{organization_id}/vpc/{organization_vpc_id} and check that the pending_build_only_peering_connections field has returned to null.