feat: add support for Laravel 11 (#5)

Author: hansgoed

composer.json

@@ -4,7 +4,7 @@
   "description": "Improve working with encrypted environment files in Laravel.",
   "require": {
     "php": "^8.1",
-    "laravel/framework": "^10.0"
+    "laravel/framework": "^10.0|^11.0"
   },
   "require-dev": {
     "pestphp/pest": "^2.28",