Disable headless Chrome installation in workflow

Comment out the installation of headless Chrome for diagram rendering.

Author: mckeea

.github/workflows/deploy-docs.yml

@@ -103,8 +103,8 @@ jobs:
       # Hotfix: install chrome into the job's HOME so the Typst diagram render
       # finds it (container jobs set HOME=/github/home). Drop once the rebuilt
       # image bakes XDG_DATA_HOME in.
-      - name: Ensure headless Chrome for diagram rendering
-        run: quarto install chrome-headless-shell
+      #- name: Ensure headless Chrome for diagram rendering
+      #  run: quarto install chrome-headless-shell
 
       - name: Build Docs
         run: .github/scripts/build/build-docs.sh