ci: ensure tests have all fonts properly installed

scripts/install-source-sans

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+set -eu
+
+wget -O ~/source-sans.zip https://github.com/adobe-fonts/source-sans/releases/download/3.052R/OTF-source-sans-3.052R.zip
+mkdir -p ~/source-sans-fonts
+unzip ~/source-sans.zip -d ~/source-sans-fonts
+mkdir -p ~/.fonts
+find ~/source-sans-fonts -type f -name "*.otf" -exec cp {} ~/.fonts \;
+rm ~/source-sans.zip
+rm -rf ~/source-sans-fonts
+fc-cache -f -v