Bump phpstan/phpstan from 1.11.11 to 1.12.0 (#198)

Author: dependabot[bot]

composer.json

@@ -17,7 +17,7 @@
     "friendsofphp/php-cs-fixer": "^3.63",
     "gomzyakov/php-cs-fixer-config": "^1.67",
     "phpunit/phpunit": "^11.3",
-    "phpstan/phpstan": "^1.11"
+    "phpstan/phpstan": "^1.12"
   },
   "autoload": {
     "psr-4": {