Update automerge.yml

Add branch to workflow...

Author: david-thrower

.github/workflows/automerge.yml

@@ -5,7 +5,7 @@ name: Python application
 
 on:
   push:
-    branches: [ "main", "156-try-1024-seq-length-with-cerebros-model-from-154" ]
+    branches: [ "main", "159-try-2-2-levels" ]
 
 permissions:
   contents: read