Merge pull request #9136 from lptn/fix-shepherd-without-custom-domain

Fix shepherd for default domain

src/Psalm/Internal/Cli/Psalm.php

@@ -1158,7 +1158,7 @@ private static function configureShepherd(Config $config, array $options, array
             );
         }
 
-        $is_shepherd_enabled = (bool) ($options['shepherd'] ?? getenv('PSALM_SHEPHERD'));
+        $is_shepherd_enabled = isset($options['shepherd']) || getenv('PSALM_SHEPHERD');
         if (! $is_shepherd_enabled) {
             return;
         }