Update dependency phpunit/phpunit to v12

| datasource | package         | from   | to     |
| ---------- | --------------- | ------ | ------ |
| packagist  | phpunit/phpunit | 11.5.7 | 12.0.2 |

Author: renovate[bot]

composer.json

@@ -6,7 +6,7 @@
         "php": "~8.2.0 || ~8.3.0 || ~8.4.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^11.5.7",
+        "phpunit/phpunit": "^12.0.2",
         "roave/infection-static-analysis-plugin": "^1.36.0",
         "doctrine/coding-standard": "^12.0.0",
         "vimeo/psalm": "^6.5.1",