scipy: Add package librsvg2-bin

- Provide command-line utility rsvg-convert
- Add PDF support for SVG images

scipy/latest.Dockerfile

@@ -31,6 +31,7 @@ RUN dpkgArch="$(dpkg --print-architecture)" \
   && apt-get install -y --no-install-recommends \
     fonts-roboto \
     ghostscript \
+    librsvg2-bin \
     qpdf \
     texinfo \
   ## Install quarto