Try SSH

Author: istarkov

.github/workflows/vercel-deploy-staging.yml

@@ -40,6 +40,7 @@ jobs:
         with:
           ref: ${{ github.event.pull_request.head.sha || github.sha }} # HEAD commit instead of merge commit
           submodules: recursive
+          ssh-key: ${{ secrets.PRIVATE_GITHUB_DEPLOY_TOKEN }}
 
       - name: Try checkout submodules to the same branch as main repo
         run: |