Update phpstan to 1.12

Author: SenseException

composer.json

@@ -23,7 +23,7 @@
     },
     "require-dev": {
         "phpunit/phpunit": "^9.6",
-        "phpstan/phpstan": "^1.10",
+        "phpstan/phpstan": "^1.12",
         "phpstan/phpstan-phpunit": "^1.3",
         "infection/infection": "^0.27",
         "vimeo/psalm": "^5.22",