fix ownership in dockerfile

Dockerfile

@@ -3,18 +3,18 @@ FROM nvcr.io/nvidia/pytorch:23.08-py3
 LABEL maintainer="yuanze"
 LABEL email="[email protected]"
 
+# Install webp support
+RUN apt update && apt install libwebp-dev -y
+
 RUN useradd -m -u 1000 user
 USER user
 
 WORKDIR /code
 
-# Install webp support
-RUN apt update && apt install libwebp-dev -y
-
 # According to https://huggingface.co/docs/hub/spaces-sdks-docker#permissions, the container will run with the user id 1000
 RUN chown -R user:user /code
 
-COPY ./requirements.txt /code/requirements.txt
+COPY --chown=user:user ./requirements.txt /code/requirements.txt
 
 RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
@@ -25,7 +25,7 @@ ENV TORCH_CUDA_ARCH_LIST="8.6"
 RUN git clone https://github.com/erikwijmans/Pointnet2_PyTorch.git
 
 # replace the setup.py file to fix the error
-COPY ./change_setup.txt /code/Pointnet2_PyTorch/pointnet2_ops_lib/setup.py
+COPY --chown=user:user ./change_setup.txt /code/Pointnet2_PyTorch/pointnet2_ops_lib/setup.py
 
 RUN cd Pointnet2_PyTorch/pointnet2_ops_lib \
     && pip install .