chore(deps): update dependency phpstan/phpstan to ^2.2.6

Author: renovate[bot]

composer.json

@@ -17,7 +17,7 @@
         "ergebnis/composer-normalize": "^2.52.0",
         "lendable/composer-license-checker": "^1.4.0",
         "php-cs-fixer/shim": "^3.95.17",
-        "phpstan/phpstan": "^2.2.5",
+        "phpstan/phpstan": "^2.2.6",
         "phpstan/phpstan-deprecation-rules": "^2.0.4",
         "phpstan/phpstan-phpunit": "^2.0.18",
         "phpstan/phpstan-strict-rules": "^2.0.12",