Composer: require symfony v6+

Author: f3l1x

composer.json

@@ -24,7 +24,7 @@
   "require": {
     "php": ">=8.1",
     "nette/di": "^3.1.9",
-    "symfony/event-dispatcher": "^4.3.1 || ^5.0 || ^6.0"
+    "symfony/event-dispatcher": "^6.4.3 || ^7.0.3"
   },
   "require-dev": {
     "contributte/event-dispatcher": "^0.9.0",