[Composer]Warning from https://packagist.org: You are using an outdated version of Composer. Composer 2.0 is now available and you should upgrade. See https://getcomposer.org/2
Laravelのプロジェクトを作ろうとしたらcomposerを2.0にバージョンアップしろと。 % composer create-project laravel/laravel example-project Warning from Y...