Merge pull request #4188 from Strubbl/patch-3

Update backup.php

config/backup.php

@@ -28,6 +28,7 @@ return [
                  */
                 'exclude' => [
                     base_path('.git'),
+                    base_path('storage/app/public/cache'),
                     base_path('vendor'),
                     base_path('node_modules'),
                 ],