Update dependency phpunit/phpunit to v12

| datasource | package         | from   | to     |
| ---------- | --------------- | ------ | ------ |
| packagist  | phpunit/phpunit | 9.6.22 | 12.0.2 |


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

composer.json

@@ -37,7 +37,7 @@
         "infection/infection": "^0.27.11",
         "laminas/laminas-coding-standard": "~3.0.1",
         "maglnet/composer-require-checker": "^3.8.0",
-        "phpunit/phpunit": "^9.6.22",
+        "phpunit/phpunit": "^12.0.0",
         "psalm/plugin-phpunit": "^0.19.0",
         "vimeo/psalm": "^5.26.1"
     },