Update dependency phpunit/phpunit to v12

| datasource | package         | from    | to     |
| ---------- | --------------- | ------- | ------ |
| packagist  | phpunit/phpunit | 10.0.16 | 12.0.0 |

Author: renovate[bot]

composer.json

@@ -30,7 +30,7 @@
         "phpstan/phpstan-deprecation-rules": "^1.0",
         "phpstan/phpstan-phpunit": "^1.1",
         "phpstan/phpstan-strict-rules": "^1.4",
-        "phpunit/phpunit": "^10.0.16"
+        "phpunit/phpunit": "^12.0.0"
     },
     "conflict": {
         "lcobucci/di-builder": "7.2.0"