Update Dockerfile

Dockerfile

@@ -12,7 +12,6 @@ RUN apt-get update && apt-get install -y \
     curl \
     sed \
     python3-pip \
-    python3-distutils \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
@@ -20,7 +19,13 @@ WORKDIR /app
 # Toolkitのクローン
 RUN git clone https://github.com/overleaf/toolkit.git /app/toolkit
 WORKDIR /app/toolkit
- 
+
+RUN python3 -m venv /opt/venv
+
+# Add it to the PATH (this "activates" it for the rest of the Dockerfile)
+ENV PATH="/opt/venv/bin:$PATH"
+
+RUN pip install distutils
 
 # Toolkitの初期化
 RUN bin/init