Update dependency phpstan/phpstan to ^1.12.12 (#246)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

composer.json

@@ -47,7 +47,7 @@
         "ekino/phpstan-banned-code": "^1.0",
         "friendsofphp/php-cs-fixer": "^3.65.0",
         "php-coveralls/php-coveralls": "^2.7.0",
-        "phpstan/phpstan": "^1.12.11",
+        "phpstan/phpstan": "^1.12.12",
         "phpstan/phpstan-phpunit": "^1.4.1",
         "phpunit/phpunit": "^10.5.38",
         "qossmic/deptrac": "^2.0.4",