identify github actions bot

Author: banana-bred

.github/workflows/sync.yml

@@ -16,6 +16,12 @@ jobs:
       - uses: actions/checkout@v3
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
+          fetch-depth: 0
+
+      - name: identify
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
 
       - name: fetch upstream
         run: |