Update Dockerfile

Author: Danto7632

Dockerfile

@@ -6,6 +6,10 @@ WORKDIR /usr/src/app
 COPY requirements.txt ./
 RUN pip install --no-cache-dir -r requirements.txt
 
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    gcc g++ make openjdk-11-jdk-headless && \
+    rm -rf /var/lib/apt/lists/*
+
 # 앱 코드 복사
 COPY server/app.py .
 COPY server/code ./code