Update dependency phpunit/phpunit to ^11.3.1 (#873)

| datasource | package         | from   | to     |
| ---------- | --------------- | ------ | ------ |
| packagist  | phpunit/phpunit | 11.3.0 | 11.3.1 |

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

composer.json

@@ -43,7 +43,7 @@
         "phpunit/php-code-coverage": "^11.0.5",
         "phpunit/php-file-iterator": "^5.0.1",
         "phpunit/php-timer": "^7.0.1",
-        "phpunit/phpunit": "^11.3.0",
+        "phpunit/phpunit": "^11.3.1",
         "sebastian/environment": "^7.2.0",
         "symfony/console": "^6.4.10 || ^7.1.3",
         "symfony/process": "^6.4.8 || ^7.1.3"