update to latest phpunit 11 and remove patch for serialize

Author: s-martin

composer.json

@@ -3,9 +3,8 @@
     "description": "A Raspberry Pi jukebox, playing local music, podcasts, web radio and streams triggered by RFID cards, web app or home automation. All plug and play via USB. GPIO scripts available.",
     "type": "project",
     "require-dev": {
-        "phpunit/phpunit": "^9",
+        "phpunit/phpunit": "^11",
         "php-mock/php-mock-phpunit": "^2.6",
-        "mpyw/phpunit-patch-serializable-comparison": "^0.0.2",
         "doctrine/instantiator": "^1.5.0"
     },
     "license": "MIT",