Bump dawidd6/action-download-artifact from 3 to 4 (#909)

.github/workflows/update-pr.yml

@@ -22,7 +22,7 @@ jobs:
       with:
         submodules: true
     - name: 'Download branch build info'
-      uses: dawidd6/action-download-artifact@v3
+      uses: dawidd6/action-download-artifact@v4
       with:
         workflow: ${{ github.event.workflow_run.workflow_id }}
         run_id: ${{ github.event.workflow_run.id }}