Update auto-pr.yml

resolves https://github.com/volosoft/volo/issues/6059

.github/workflows/auto-pr.yml

@@ -1,15 +1,15 @@
-name: Merge branch dev with rel-4.2
+name: Merge branch rel-4.3 with rel-4.2
 on:
   push:
     branches:
       - rel-4.2
 jobs:
-  merge-dev-with-rel-4-2:
+  merge-rel-4-3-with-rel-4-2:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
         with:
-          ref: dev
+          ref: rel-4.3
       - name: Reset promotion branch
         run: |
           git fetch origin rel-4.2:rel-4.2
@@ -18,7 +18,7 @@ jobs:
         uses: peter-evans/create-pull-request@v3
         with:
           branch: auto-merge/rel-4-2/${{github.run_number}}
-          title: Merge branch dev with rel-4.2
-          body: This PR generated automatically to merge dev with rel-4.2. Please review the changed files before merging to prevent any errors that may occur.
+          title: Merge branch rel-4.3 with rel-4.2
+          body: This PR generated automatically to merge rel-4.3 with rel-4.2. Please review the changed files before merging to prevent any errors that may occur.
           reviewers: ${{github.actor}}
           token: ${{ github.token }}