Add imagemagick for the CI builds svg conversion.

Author: moorepants

.github/workflows/build-website.yml

@@ -28,8 +28,7 @@ jobs:
 
     - name: Install apt dependencies
       run: |
-        sudo apt install texlive texlive-xetex latexmk fonts-freefont-otf
-
+        sudo apt install texlive texlive-xetex latexmk fonts-freefont-otf imagemagick
     - name: Build the website & PDF
       shell: bash -l {0}
       run: |