Update Dockerfile

Dockerfile

@@ -6,18 +6,19 @@ WORKDIR /app
 # Install python, git & ffmpeg
 RUN apt-get update && apt-get install --no-install-recommends -y \
   build-essential \
-  python3.9 \
+  python3.8.10 \
   python3-pip \
   git \
-  ffmpeg \
   && apt-get clean && rm -rf /var/lib/apt/lists/*
 
 WORKDIR $HOME/app
+
 COPY ./requirements.txt /app/requirements.txt
 COPY ./packages.txt /app/packages.txt
+
 RUN pip install torch==1.12.1+cu113 torchvision==0.13.1+cu113 torchaudio==0.12.1+cu113 -f https://download.pytorch.org/whl/cu113/torch_stable.html
 RUN apt-get update && xargs -r -a /app/packages.txt apt-get install -y && rm -rf /var/lib/apt/lists/*
-RUN pip3 install --no-cache-dir -r ./requirements.txt
+RUN pip3 install --no-cache-dir -r /app/requirements.txt
 RUN pip3 install --no-binary :all: --no-use-pep517 pyworld