ci(visuals): bump traffic (#36013)

.github/workflows/acceptance.yml

@@ -285,7 +285,7 @@ jobs:
         id: snapshot_ref
         run: |
           random=$(( ( RANDOM % 10 )  + 1 ));
-          echo "::set-output name=ref::$([[ $random -ge 3 ]] && echo "pixelmatch" || echo "odiff")"
+          echo "::set-output name=ref::$([[ $random -ge 4 ]] && echo "pixelmatch" || echo "odiff")"
 
       - name: Diff snapshots
         id: visual-snapshots-diff-pixelmatch