Update Dockerfile

Dockerfile

@@ -15,10 +15,8 @@ RUN pip install --no-cache-dir --upgrade -r /requirements.txt
 # Install LeelaChessZero depencies
 RUN apt update -y
 RUN apt upgrade -y
-RUN apt-cache search cuda
-# RUN apt install ocl-icd-opencl-dev -y
-# RUN apt install cuda -y
-# RUN apt install zlib1g -y
+RUN apt upgrade libstdc++6 -y
+RUN apt install ocl-icd-opencl-dev -y
 
 # Make engines executable
 RUN chmod +x engines/stockfish/*