Update Dockerfile to optimize application setup and streamline dependencies

Dockerfile

@@ -1,7 +1,5 @@
 FROM python:3.12.7
 
-RUN apt-get update && apt-get install -y libgl1 && rm -rf /var/lib/apt/lists/*
-
 RUN useradd -m -u 1000 user
 USER user
 ENV PATH="/home/user/.local/bin:$PATH"
@@ -11,5 +9,10 @@ WORKDIR /app
 COPY --chown=user ./requirements.txt requirements.txt
 RUN pip install --no-cache-dir --upgrade -r requirements.txt
 
+USER root
+RUN apt-get update && apt-get install -y \
+    libgl1 \
+USER user
+
 COPY --chown=user . /app
 CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]