Merge pull request #1513 from microsoftgraph/fix/automerge-workflow

Update dependabot automerge workflow to target `dev`

Author: Ndiritu

.github/workflows/auto-merge-dependabot.yml

@@ -2,7 +2,7 @@ name: Auto-merge dependabot updates
 
 on:
   pull_request:
-    branches: [ main ]
+    branches: [ dev ]
 
 permissions:
   pull-requests: write