追記なのですがインストールを押して完了すると以下のようなログが表示されます。(インストールはされてません)
分かる方ご教授いただければ幸いです、、

**************** ZeusPayment4 ****************
<warning>Deprecation warning: require.ec-cube/SortProduct is invalid, it should not contain uppercase characters. Please use ec-cube/sortproduct instead. Make sure you fix this as Composer 2.0 will error.</warning>
<warning>Deprecation warning: require.ec-cube/SortProduct4Plus is invalid, it should not contain uppercase characters. Please use ec-cube/sortproduct4plus instead. Make sure you fix this as Composer 2.0 will error.</warning>
<warning>Deprecation warning: require.ec-cube/ZeusPayment4 is invalid, it should not contain uppercase characters. Please use ec-cube/zeuspayment4 instead. Make sure you fix this as Composer 2.0 will error.</warning>
[13.7MiB/1.35s] <warning>Warning from https://repo.packagist.org: You are using an outdated version of Composer. Composer 2 is now available and you should upgrade. See https://getcomposer.org/2</warning>
[200.4MiB/2.95s] Using version ^1.0 for ec-cube/ZeusPayment4
[200.4MiB/2.95s] ./composer.json has been updated
[200.8MiB/3.27s] <warning>Deprecation warning: require.ec-cube/SortProduct is invalid, it should not contain uppercase characters. Please use ec-cube/sortproduct instead. Make sure you fix this as Composer 2.0 will error.</warning>
[200.8MiB/3.27s] <warning>Deprecation warning: require.ec-cube/SortProduct4Plus is invalid, it should not contain uppercase characters. Please use ec-cube/sortproduct4plus instead. Make sure you fix this as Composer 2.0 will error.</warning>
[200.8MiB/3.27s] <warning>Deprecation warning: require.ec-cube/ZeusPayment4 is invalid, it should not contain uppercase characters. Please use ec-cube/zeuspayment4 instead. Make sure you fix this as Composer 2.0 will error.</warning>
[204.6MiB/4.19s] <warning>Dependency "ec-cube/plugin-installer" is also a root requirement, but is not explicitly whitelisted. Ignoring.</warning>
[204.4MiB/4.19s] Loading composer repositories with package information
[205.7MiB/5.63s] <warning>Warning from https://repo.packagist.org: You are using an outdated version of Composer. Composer 2 is now available and you should upgrade. See https://getcomposer.org/2</warning>
[205.7MiB/5.63s] Updating dependencies (including require-dev)
[650.5MiB/39.31s] Nothing to install or update
[647.7MiB/39.38s] <warning>Package doctrine/doctrine-cache-bundle is abandoned, you should avoid using it. No replacement was suggested.</warning>
[647.7MiB/39.38s] <warning>Package doctrine/reflection is abandoned, you should avoid using it. Use roave/better-reflection instead.</warning>
[647.7MiB/39.38s] <warning>Package easycorp/easy-log-handler is abandoned, you should avoid using it. No replacement was suggested.</warning>
[647.7MiB/39.38s] <warning>Package facebook/webdriver is abandoned, you should avoid using it. Use php-webdriver/webdriver instead.</warning>
[647.7MiB/39.38s] <warning>Package fzaninotto/faker is abandoned, you should avoid using it. No replacement was suggested.</warning>
[647.7MiB/39.38s] <warning>Package phpunit/php-token-stream is abandoned, you should avoid using it. No replacement was suggested.</warning>
[647.7MiB/39.38s] <warning>Package phpunit/phpunit-mock-objects is abandoned, you should avoid using it. No replacement was suggested.</warning>
[647.7MiB/39.38s] <warning>Package sensio/generator-bundle is abandoned, you should avoid using it. Use symfony/maker-bundle instead.</warning>
[647.7MiB/39.38s] <warning>Package setasign/fpdi-tcpdf is abandoned, you should avoid using it. No replacement was suggested.</warning>
[647.7MiB/39.38s] <warning>Package twig/extensions is abandoned, you should avoid using it. No replacement was suggested.</warning>
[647.7MiB/39.38s] <warning>Package zendframework/zend-code is abandoned, you should avoid using it. Use laminas/laminas-code instead.</warning>
[647.7MiB/39.38s] <warning>Package zendframework/zend-eventmanager is abandoned, you should avoid using it. Use laminas/laminas-eventmanager instead.</warning>
[648.5MiB/40.18s] Generating optimized autoload files
[649.7MiB/44.94s] Memory usage: 649.69MiB (peak: 753.48MiB), time: 44.94s