[8.x] Do not set SYSTEMROOT to false (#40819)

Author: William

src/Illuminate/Foundation/Console/ServeCommand.php

@@ -105,6 +105,7 @@ protected function startProcess($hasEnvironment)
                 'LARAVEL_SAIL',
                 'PHP_CLI_SERVER_WORKERS',
                 'PHP_IDE_CONFIG',
+                'SYSTEMROOT',
                 'XDEBUG_CONFIG',
                 'XDEBUG_MODE',
                 'XDEBUG_SESSION',