🩹 Fix potential exception thrown when using wp acorn about (#449)

Author: Log1x

src/Roots/Acorn/Console/Commands/AboutCommand.php

@@ -40,8 +40,8 @@ protected function aboutEnvironment()
             'Debug Mode' => $this->laravel->get('config')->get('app.debug') ? '<fg=yellow;options=bold>ENABLED</>' : 'OFF',
             'Maintenance Mode' => $this->laravel->isDownForMaintenance() ? '<fg=yellow;options=bold>ENABLED</>' : 'OFF',
             'URL' => Str::of(config('app.url'))->replace(['http://', 'https://'], ''),
-            'Plugins' => get_site_transient('update_plugins') && count(get_site_transient('update_plugins')->response) ? '<fg=yellow;options=bold>UPDATES AVAILABLE</>' : '<fg=green;options=bold>UP TO DATE</>',
-            'Themes' => get_site_transient('update_themes') && count(get_site_transient('update_themes')->response) ? '<fg=yellow;options=bold>UPDATES AVAILABLE</>' : '<fg=green;options=bold>UP TO DATE</>',
+            'Plugins' => get_site_transient('update_plugins') && count(get_site_transient('update_plugins')->response ?? []) ? '<fg=yellow;options=bold>UPDATES AVAILABLE</>' : '<fg=green;options=bold>UP TO DATE</>',
+            'Themes' => get_site_transient('update_themes') && count(get_site_transient('update_themes')->response ?? []) ? '<fg=yellow;options=bold>UPDATES AVAILABLE</>' : '<fg=green;options=bold>UP TO DATE</>',
         ]);
 
         collect(static::$customDataResolvers)