Update dependency phpunit/phpunit to ^9 || 10.2.* || 10.3.*

Author: renovate[bot]

composer.json

@@ -25,7 +25,7 @@
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3",
-        "phpunit/phpunit": "^9 || 10.2.*",
+        "phpunit/phpunit": "^9 || 10.2.* || 10.3.*",
         "guzzlehttp/psr7": "^2",
         "php-mock/php-mock-phpunit": "^2.6"
     },