use ssh key for git checkout in transpile worfklow

.github/workflows/transpile.yml

@@ -11,6 +11,7 @@ jobs:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 0
+          ssh-key: ${{secrets.DEPLOY_KEY}}
       - uses: actions/setup-node@v1
         with:
           node-version: 10.x