add custom labels to provisioning proxy input steps

gso/services/provisioning_proxy.py

@@ -169,15 +169,13 @@ def deprovision_ip_trunk(subscription: Iptrunk,
 
 
 @inputstep('Await provisioning proxy results', assignee=Assignee('SYSTEM'))
-def await_pp_results(subscription: SubscriptionModel) -> State:
+def await_pp_results(subscription: SubscriptionModel,
+                     label_text: str) -> State:
     class ProvisioningResultPage(FormPage):
         class Config:
             title = f'Deploying {subscription.product.name}...'
 
-        warning_label: Label = f'{subscription.product.description} is being' \
-                               f' deployed right now. Feel free to refresh ' \
-                               f'this page every now and again. Just be ' \
-                               f'sure that you do NOT click submit!'
+        warning_label: Label = label_text
         pp_run_results: dict = None
         confirm: Accept = Accept('INCOMPLETE')