Update phpunit dependency

Author: ADmad

composer.json

@@ -44,7 +44,7 @@
     "require-dev": {
         "cakephp/cakephp": "^4.2",
         "cakephp/cakephp-codesniffer": "^4.0",
-        "phpunit/phpunit": "~8.5.0"
+        "phpunit/phpunit": "^8.5 || ^9.3"
     },
     "autoload": {
         "psr-4": {