remove quarto installation from publishing app GH action

Author: rpodcast

.github/workflows/publish-app.yaml

@@ -15,9 +15,6 @@ jobs:
       - name: Check out repository
         uses: actions/checkout@v4
 
-      - name: Set up Quarto
-        uses: quarto-dev/quarto-actions/setup@v2
-
       - name: Install R
         uses: r-lib/actions/setup-r@v2
         with: