chore(deps): update Composer dependencies

Update all dependencies to their latest PHP 8.3 compatible versions:
- laravel/framework v12.46.0 → v12.49.0
- laravel/sanctum v4.2.2 → v4.3.0
- grazulex/laravel-apiroute v2.0.3 → v2.0.5
- spatie/laravel-data 4.18.0 → 4.19.1
- spatie/laravel-query-builder 6.3.6 → 6.4.1
- phpstan/phpstan 2.1.35 → 2.1.38
- pestphp/pest v4.3.1 → v4.3.2
- rector/rector 2.3.2 → 2.3.5

Added platform PHP 8.3 constraint to prevent Symfony 8.x packages
from being installed (requires PHP 8.4).

composer.json

@@ -88,6 +88,9 @@
         "allow-plugins": {
             "pestphp/pest-plugin": true,
             "php-http/discovery": true
+        },
+        "platform": {
+            "php": "8.3.30"
         }
     },
     "minimum-stability": "stable",