Update dependency phpunit/phpunit to v12

| datasource | package         | from    | to     |
| ---------- | --------------- | ------- | ------ |
| packagist  | phpunit/phpunit | 10.5.44 | 12.0.1 |


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

Author: renovate[bot]

composer.json

@@ -38,7 +38,7 @@
     "phpspec/prophecy-phpunit": "^2.1.0",
     "phpstan/phpstan": "^2.1.0",
     "phpstan/phpstan-symfony": "^2.0",
-    "phpunit/phpunit": "^10.5.2",
+    "phpunit/phpunit": "^12.0.0",
     "psalm/plugin-symfony": "^5.1.0",
     "roave/security-advisories": "dev-master",
     "symfony/uid": "^6.4.0|^7.0.0",