revert fix to v3 as v4 not available

Author: robjharrison

.github/workflows/ssd_publish.yml

@@ -9,7 +9,6 @@ permissions:
   contents: read
   pages: write
   id-token: write
-  actions: read   # required by deploy-pages@v4
 
 concurrency:
   group: "pages"
@@ -29,7 +28,7 @@ jobs:
         uses: actions/configure-pages@v5
 
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v4
+        uses: actions/upload-pages-artifact@v3
         with:
           path: docs/