push to fork (#28)

Author: Leonz5288

.github/workflows/persubmit.yml

@@ -16,8 +16,8 @@ jobs:
           token: ${{ secrets.GARDENER_PAT }}
           #ref: ${{ steps.pr_data.outputs.branch }}
           #repository: ${{ steps.pr_data.outputs.repo_name }}
-          ref: ${{ github.event.pull_request.head.ref }}
-          repository: ${{ github.event.pull_request.head.repo.full_name }}
+          ref: ${{ github.event.client_payload.pull_request.head.ref }}
+          repository: ${{ github.event.client_payload.pull_request.head.repo.full_name }}
           fetch-depth: 0
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v2
@@ -26,7 +26,7 @@ jobs:
       - name: Check and change code format
         run: |
           git checkout -b _tmp_format
-          git checkout ${{ github.event.pull_request.head.ref }}
+          git checkout ${{ github.event.client_payload.pull_request.head.ref }}
           git fetch https://github.com/taichi-dev/test_actions.git refs/heads/master
           git reset FETCH_HEAD
           python3 -m pip install yapf gitpython colorama isort
@@ -42,5 +42,5 @@ jobs:
         uses: ad-m/github-push-action@master
         with:
           GITHUB_TOKEN: ${{ secrets.GARDENER_PAT }}
-          branch: ${{ github.event.pull_request.head.ref }}
-          repository: ${{ github.event.pull_request.head.repo.full_name }}
+          branch: ${{ github.event.client_payload.pull_request.head.ref }}
+          repository: ${{ github.event.client_payload.pull_request.head.repo.full_name }}