Update Dockerfile.ci to create a symbolic link for Python 3, ensuring compatibility with Python scripts during the build process.

Signed-off-by: tzhouam <tzhouam@connect.ust.hk>

docker/Dockerfile.ci

@@ -21,8 +21,8 @@ RUN apt-get update && \
 RUN uv pip install --system --upgrade --force-reinstall --prerelease=allow vllm --extra-index-url https://wheels.vllm.ai/a60985b07eaf0fefa4c353ad2309b745707591ed
 
 RUN uv pip install --system --no-cache-dir ".[dev]"
+RUN ln -sf /usr/bin/python3 /usr/bin/python
 RUN FLASHINFER_VERSION=$(python -c "import flashinfer; print(flashinfer.__version__)") && \
     uv pip install --system --upgrade "flashinfer-cubin==${FLASHINFER_VERSION}"
-RUN ln -sf /usr/bin/python3 /usr/bin/python
 
 ENTRYPOINT []