dev: fixing ffmpeg error

Dockerfile

@@ -1,15 +1,26 @@
 FROM python:3.9
 
+# Create a new user
 RUN useradd -m -u 1000 user
+
+# Switch to root user for package installation
+USER root
+
+# Install ffmpeg and other dependencies
+RUN apt-get update && apt-get install -y ffmpeg && rm -rf /var/lib/apt/lists/*
+
+# Switch to non-root user
 USER user
 ENV PATH="/home/user/.local/bin:$PATH"
 
 WORKDIR /app
 
+# Copy and install Python dependencies
 COPY --chown=user ./requirements.txt requirements.txt
 RUN pip install --no-cache-dir --upgrade -r requirements.txt
-RUN apt-get update && apt-get install -y ffmpeg
-USER user 
 
+# Copy application files
 COPY --chown=user . /app
-CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]
+
+# Define the default command
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]