Fix POA controller, test

modules/accredited_representative_portal/app/controllers/accredited_representative_portal/v0/power_of_attorney_requests_controller.rb

@@ -9,7 +9,7 @@ def index
       end
 
       def show
-        if poa_request && PowerOfAttorneyRequestPolicy.new(current_user, poa_request).show?
+        if poa_request && authorize(poa_request, :show?, policy_class: AccreditedRepresentativePortal::PowerOfAttorneyRequestPolicy)
           render json: { data: poa_request }
         else
           head :not_found

modules/accredited_representative_portal/spec/controllers/concerns/accredited_representative_portal/authenticable_spec.rb

@@ -7,6 +7,8 @@
     def index
       head :ok
     end
+
+    def verify_pundit_authorization; end
   end
 
   let(:representative_user) { create(:representative_user) }