Update main.yml

Author: Dynamsoft-Henry

.github/workflows/main.yml

@@ -34,8 +34,9 @@ jobs:
 
   Build-v9:
     if: ${{ github.ref == 'refs/heads/v9' }}
-    uses: dynamsoft-docs/Docs-Template-Repo/.github/workflows/called-workflow-build-sync-testing.yml@preview
+    uses: dynamsoft-docs/Docs-Template-Repo/.github/workflows/called-workflow-build-sync-testing.yml@DBR-v9
     with:
       doc-repo: barcode-reader-docs-mobile
-      doc-url: barcode-reader/docs/mobile
+      doc-url: barcode-reader/docs/v9mobile
+      doc-branch: v9
     secrets: inherit