feat: Add Laravel 12 compatibility

- Update PHP requirement to ^8.1 (Laravel 12 minimum)
- Add Symfony Process ^7.0 support for Laravel 12
- Update dev dependencies (phpunit ^10.0, php-cs-fixer ^3.0, psalm ^5.0)

Author: Escarter

composer.json

@@ -15,14 +15,14 @@
         }
     ],
     "require": {
-        "php": "^7.3|^8.0",
-        "symfony/process": "^5.4|^6.3"
+        "php": "^8.1",
+        "symfony/process": "^5.4|^6.3|^7.0"
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "^2.17",
-        "phpunit/phpunit": "^9.5",
+        "friendsofphp/php-cs-fixer": "^3.0",
+        "phpunit/phpunit": "^10.0",
         "spatie/ray": "^1.10",
-        "vimeo/psalm": "^4.3"
+        "vimeo/psalm": "^5.0"
     },
     "autoload": {
         "psr-4": {