Update dependency phpunit/phpunit to 11.3.* (#813)

* Update dependency phpunit/phpunit to 11.3.*

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Frank Dekker <fdekker@123inkt.nl>

composer.json

@@ -107,7 +107,7 @@
         "phpstan/phpstan-phpunit": "^1.3",
         "phpstan/phpstan-strict-rules": "^1.5",
         "phpstan/phpstan-symfony": "^1.3",
-        "phpunit/phpunit": "11.2.*",
+        "phpunit/phpunit": "11.3.*",
         "roave/security-advisories": "dev-latest",
         "slevomat/coding-standard": "^8.15",
         "squizlabs/php_codesniffer": "^3.9",