[fs2zammad] fix error handling on ticket creation (previously ignored)

fs2zammad

@@ -6,6 +6,7 @@ import os
 import pickle
 import sys
 import html2text
+import traceback
 
 from zammad_py import ZammadAPI
 from zammad_py.api import Resource, TagList, TicketArticle
@@ -245,6 +246,9 @@ def create_zammad_ticket(id, zammad, h2t, retries=3):
         print(f"Failed to import RT-#{id} .. ({retries} retries left)")
         if retries > 0:
             create_zammad_ticket(id, zammad, h2t, retries - 1)
+        else:
+             traceback.print_exc()
+             raise RuntimeError
 
 ### main logic ###