Use official GitHub action for preview download

Author: holly-cummins

.github/workflows/preview.yml

@@ -15,11 +15,10 @@ jobs:
     if: github.event.workflow_run.event == 'pull_request' && github.event.workflow_run.conclusion == 'success'
     steps:
       - name: Download PR Artifact
-        uses: dawidd6/action-download-artifact@v6
+        uses: actions/download-artifact@v4
         with:
-          workflow: ${{ github.event.workflow_run.workflow_id }}
-          run_id: ${{ github.event.workflow_run.id }}
-          workflow_conclusion: success
+          github-token: ${{ secrets.GITHUB_TOKEN }} # token with actions:read permissions on target repo
+          run-id: ${{ github.event.workflow_run.id }}
           name: site
       - name: Store PR id as variable
         id: pr