Merge pull request #2012 from element-hq/renovate/dawidd6-action-download-artifact-3.x

Update dawidd6/action-download-artifact action to v3

.github/workflows/netlify-pr.yaml

@@ -36,7 +36,7 @@ jobs:
       # There's a 'download artifact' action, but it hasn't been updated for the workflow_run action
       # (https://github.com/actions/download-artifact/issues/60) so instead we get this mess:
       - name: 📥 Download artifact
-        uses: dawidd6/action-download-artifact@v2
+        uses: dawidd6/action-download-artifact@v3
         with:
           run_id: ${{ github.event.workflow_run.id }}
           name: build