Raising requirements for PHPUnit to 9.5.28

Author: Hackwar

composer.json

@@ -17,7 +17,7 @@
         "joomla/filesystem": "3.0.x-dev",
         "joomla/registry": "3.0.x-dev",
         "joomla/test": "3.0.x-dev",
-        "phpunit/phpunit": "^9.0",
+        "phpunit/phpunit": "^9.5.28",
         "psr/log": "^1.1",
         "symfony/phpunit-bridge": "^4.4|^5.0",
         "squizlabs/php_codesniffer": "~3.7.1"