Update PHPUnit and Testbench version requirements

Author: Gummibeer

composer.json

@@ -17,7 +17,7 @@
     "homepage": "https://github.com/Astrotomic/phpunit-assertions",
     "require": {
         "php": "^8.0",
-        "phpunit/phpunit": "^9.1 || ^10.0 || ^11.0"
+        "phpunit/phpunit": "^9.1 || ^10.0 || ^11.0 || ^12.0"
     },
     "require-dev": {
         "astrotomic/iso639": "^1.0",
@@ -27,7 +27,7 @@
         "hashids/hashids": "^4.0 || ^5.0",
         "laravel/pint": "^1.0",
         "league/iso3166": "^2.1 || ^3.0 || ^4.0",
-        "orchestra/testbench": "^6.0 || ^7.0 || ^8.0 || ^9.0 || ^10.0",
+        "orchestra/testbench": "^6.0 || ^7.0 || ^8.0 || ^9.0 || ^10.0 || ^11.0",
         "ramsey/uuid": "^4.0",
         "vinkla/hashids": "^9.0 || ^10.0 || ^11.0 || ^12.0 || ^13.0"
     },