[skip ci] Add 4.1.1 to discussion template

Author: mkuratczyk

.github/DISCUSSION_TEMPLATE/questions.yml

@@ -29,6 +29,7 @@ body:
     attributes:
       label: RabbitMQ version used
       options:
+        - 4.1.1
         - 4.1.0
         - 4.0.9
         - 4.0.8