draft releases from the 4.1 and v5 branch only

those are the only ones we're using

Author: tabacitu

.github/release-drafter.yml

@@ -5,7 +5,8 @@ on:
   push:
     # branches to consider in the event; optional, defaults to all
     branches:
-      - master
+      - 4.1
+      - v5
 
 jobs:
   update_release_draft: