Update Dockerfile

Dockerfile

@@ -8,6 +8,8 @@ COPY . .
 
 # Install dependencies from the requirements file without using cache to reduce image size
 RUN pip install --no-cache-dir --upgrade -r requirements.txt
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
 
 # Define the command to start the application using Gunicorn with 4 worker processes
 # - `-w 4`: Uses 4 worker processes for handling requests