Fix up stan.

Author: dereuromark

composer.json

@@ -74,9 +74,8 @@
         "cs-check": "phpcs",
         "cs-fix": "phpcbf",
         "test": "phpunit",
-        "stan": "phpstan analyse",
-        "phpstan": "phpstan analyse",
-        "stan-setup": "cp composer.json composer.backup && composer require --dev phpstan/phpstan:^2.0.0 && mv composer.backup composer.json",
+        "stan": "tools/phpstan analyse",
+        "stan-setup": "phive install",
         "test-coverage": "phpunit --coverage-clover=clover.xml"
     },
     "config": {