Add Laravel 12 support

Update composer.json to include Laravel 12 in version constraints for illuminate/contracts and illuminate/support packages.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: HelgeSverre

composer.json

@@ -18,8 +18,8 @@
     "require": {
         "php": "^8.2",
         "guzzlehttp/guzzle": "^7.8",
-        "illuminate/contracts": "^10.0|^11.0",
-        "illuminate/support": "^10.0|^11.0",
+        "illuminate/contracts": "^10.0|^11.0|^12.0",
+        "illuminate/support": "^10.0|^11.0|^12.0",
         "livewire/livewire": "^3.0",
         "spatie/laravel-data": "^3.9",
         "spatie/laravel-package-tools": "^1.14.0",