fix command

Signed-off-by: Junpu Fan <junpu@amazon.com>

Author: junpuf

.github/workflows/pr-example.yml

@@ -87,4 +87,4 @@ jobs:
         run: |
           aws ecr get-login-password --region ${{ secrets.AWS_REGION }} | docker login --username AWS --password-stdin ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.${{ secrets.AWS_REGION }}.amazonaws.com
           docker pull "$IMAGE_URI"
-          docker run --rm "$IMAGE_URI" --entrypoint python -c "import torch; import ray; import vllm; print('Test OK')"
+          docker run --rm --gpus=all --entrypoint /bin/bash "$IMAGE_URI" --entrypoint python -c "import torch; import ray; import vllm; print('Test OK')"