FIX(docker): add PostgreSQL dependencies

- Add libpq-dev for psycopg2
- Add postgresql-client package

deploy/docker/Dockerfile

@@ -7,8 +7,13 @@ RUN apt-get update && apt-get install -y \
     build-essential \
     curl \
     git \
+    libpq-dev \
+    postgresql-client \
     && rm -rf /var/lib/apt/lists/*
 
+# pip 업그레이드
+RUN pip install --no-cache-dir --upgrade pip setuptools wheel
+
 # Python 의존성 설치
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt