Fix Dockerfile: Update Debian packages for OpenCV compatibility

Changes:
- Replace libgl1-mesa-glx with libgl1
- Add libsm6, libxext6, libxrender-dev for OpenCV
- Add libgomp1 for OpenMP support
- Better package selection for python:3.11-slim base

Dockerfile

@@ -7,8 +7,12 @@ ENV PYTHONUNBUFFERED=1
 # Install system dependencies
 RUN apt-get update && apt-get install -y --no-install-recommends \
     ffmpeg \
-    libgl1-mesa-glx \
+    libgl1 \
     libglib2.0-0 \
+    libsm6 \
+    libxext6 \
+    libxrender-dev \
+    libgomp1 \
     && rm -rf /var/lib/apt/lists/*
 
 # Set work directory