fix: docker uv installation (#23)

Dockerfile

@@ -1,9 +1,8 @@
 FROM python:3.9.16-slim-buster
 
-# Update, install curl & tesseract, clean up
+# Update, tesseract, clean up
 RUN apt-get update  \
-    && apt-get install -y  \
-    curl \
+    && apt-get install -y --no-install-recommends \
     tesseract-ocr \
     && apt clean \
     && rm -rf /var/lib/apt/lists/*
@@ -13,15 +12,13 @@ ENV PYTHONUNBUFFERED=1
 ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONPATH "${PYTHONPATH}:/app"
 
-# Install uv
-ADD --chmod=755 https://astral.sh/uv/install.sh /install.sh
-RUN chmod +x /install.sh
-RUN /install.sh && rm /install.sh
-
 # Install dependencies
 WORKDIR /app
 COPY requirements.txt ./
-RUN /root/.cargo/bin/uv pip install --system --no-cache -r requirements.txt
+RUN --mount=from=ghcr.io/astral-sh/uv,source=/uv,target=/bin/uv \
+    uv pip install --system --no-cache -r requirements.txt
+
+# Copy app files
 COPY . ./
 
 # Run app