Update auto-release-notes.yml

Signed-off-by: krystal <56278409+theekrystallee@users.noreply.github.com>

Author: theekrystallee

.github/workflows/auto-release-notes.yml

@@ -3,7 +3,7 @@ name: Auto-generate consensus-node release notes
 on:
   push:
     branches:
-      - main
+      - update-release-notes
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -36,7 +36,7 @@ jobs:
         uses: peter-evans/create-pull-request@v7
         with:
           commit-message: "chore: update release notes"
-          signoff: true
+          sign-commits: true
           branch: update-release-notes
           title: "chore: update release notes"
           body: "Automated update of consensus-node release notes."