Avoid crash if osTicket integration is disabled

scripts/wk/hw/diags.py

@@ -903,6 +903,11 @@ def main() -> None:
 def post_system_info(state, quick_mode=False, test_mode=False) -> None:
   # pylint: disable=unused-argument
   """Post system info to osTicket."""
+  # Bail early
+  if state.ost.disabled:
+    return
+
+  # Build report
   report = state.system.generate_full_report()
   if state.disks:
     report.append('\n[Disks]')