Update PHPUnit version

Author: imliam

composer.json

@@ -22,7 +22,7 @@
         "illuminate/support": "^10.0|^11.0|^12.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^7.0|^8.0|^9.0",
+        "phpunit/phpunit": "^11.0",
         "larapack/dd": "^1.0",
         "orchestra/testbench": "^8.0|^9.0|^10.0",
         "mockery/mockery": "^1.0"