Use stable laravel-highcharts 0.3.0 for Laravel 12 support

Author: claude

composer.json

@@ -35,7 +35,7 @@
     "prefer-stable": true,
     "require": {
         "php": "^8.2|^8.3|^8.4",
-        "bernskioldmedia/laravel-highcharts": "^0.1.0|^0.2.0|^0.3.0|dev-main",
+        "bernskioldmedia/laravel-highcharts": "^0.1.0|^0.2.0|^0.3.0",
         "illuminate/contracts": "^10.0|^11.0|^12.0",
         "livewire/livewire": "^3.0"
     },