Update Dockerfile

Dockerfile

@@ -2,11 +2,13 @@ FROM python:3.9-slim
 
 WORKDIR /app
 
+# Install system dependencies, including the required graphics library for OpenCV
 RUN apt-get update && apt-get install -y \
     build-essential \
     curl \
-    software-properties-common \
     git \
+    libgl1-mesa-glx \
+    # This libgl1 is required by the opencv-python package, a dependency of ultralytics
     && rm -rf /var/lib/apt/lists/*
 
 COPY requirements.txt ./