Install extended version of Hugo

.gitea/workflows/publish.yaml

@@ -42,8 +42,10 @@ jobs:
           fi
 
       - name: Build blog
+        # We need the `extended` version of Hugo to support CSS transpilation via `libsass`. CBA to migrate to the new
+        # `dartcss` tool.
         run: |
-          wget https://github.com/gohugoio/hugo/releases/download/v0.139.0/hugo_0.139.0_linux-amd64.deb
+          wget https://github.com/gohugoio/hugo/releases/download/v0.139.0/hugo_extended_0.139.0_linux-amd64.deb
           sudo dpkg -i hugo_0.139.0_linux-amd64.deb
           apt-get update && apt-get install -y git
           git submodule init