check out pr head

Author: mshr-h

.github/workflows/tvmbot.yml

@@ -24,6 +24,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
       - name: Run tvm-bot
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}