Properly bump to Laravel 9

Author: alexgarrettsmith

Diff for: composer.json

@@ -18,11 +18,11 @@
     "require": {
         "php": "^8.0",
         "spatie/laravel-package-tools": "^1.9.2",
-        "illuminate/contracts": "^8.73"
+        "illuminate/contracts": "^9.11"
     },
     "require-dev": {
         "nunomaduro/collision": "^6.1",
-        "orchestra/testbench": "^6.22",
+        "orchestra/testbench": "^7.4.0",
         "pestphp/pest": "^1.21",
         "pestphp/pest-plugin-laravel": "^1.2",
         "phpunit/phpunit": "^9.5",