fix pyenv install

Dockerfile

@@ -8,6 +8,9 @@ RUN apt-get update && \
 RUN --mount=target=/root/packages.txt,source=packages.txt apt-get update && xargs -r -a /root/packages.txt apt-get install -y && rm -rf /var/lib/apt/lists/*
 
 RUN curl https://pyenv.run | bash
+RUN export PYENV_ROOT="$HOME/.pyenv" && \
+    command -v pyenv >/dev/null || export PATH="$PYENV_ROOT/bin:$PATH" && \
+    eval "$(pyenv init -)"
 RUN pyenv install 3.10 && pyenv global 3.10 && pyenv rehash
 # RUN pip install --no-cache-dir --upgrade pip==22.3.1 setuptools wheel && \
 #     pip install --no-cache-dir datasets "huggingface-hub>=0.12.1" "protobuf<4" "click<8.1" "pydantic~=1.0"