Update backport.yml

Author: ianf-mongodb

.github/workflows/backport.yml

@@ -12,6 +12,7 @@ jobs:
       - name: Backport Action
         uses: sorenlouv/[email protected]
         with:
+          app-id: ${{ vars.APP_ID }}
           github_token: ${{ secrets.BACKPORT_TOKEN }}
           auto_backport_label_prefix: backport-to-
 
@@ -22,4 +23,4 @@ jobs:
       - name: Debug log
         if: ${{ failure() }}
         run: cat ~/.backport/backport.debug.log        
-          
+