chore: remove unused testbench version

Author: jordyvanderhaegen

composer.json

@@ -24,7 +24,7 @@
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.5",
-        "orchestra/testbench": "^7.0|^8.0|^9.0|^10.0",
+        "orchestra/testbench": "^8.0|^9.0|^10.0",
         "phpunit/phpunit": "^10.1|^11.0"
     },
     "autoload": {