broader versions of phpunit

Author: ylebre

composer.json

@@ -22,7 +22,7 @@
         "phrity/websocket": "^3.5"
     },
     "require-dev": {
-        "phpunit/phpunit": "^12.2",
+        "phpunit/phpunit": "^9 || ^10 || ^11 || ^12",
         "phpstan/phpstan": "^2.1"
     }
 }