update laravel dependency in composer.json
update laravel dependency in composer.json

UniSharp/laravel-filemanager,UniSharp/laravel-filemanager,mikkpokk/laravel-filemanager,mikkpokk/laravel-filemanager,jonasleitep4/laravel-filemanager,jonasleitep4/laravel-filemanager,jonasleitep4/laravel-filemanager,mikkpokk/laravel-filemanager