Allow Symfony 7

Author: beberlei

composer.json

@@ -4,7 +4,7 @@
     "license": "mit",
     "require": {
         "php": "^7.2|^8.0",
-        "symfony/messenger": "^4.3 || ^5.0 || ^6.0"
+        "symfony/messenger": "^4.3 || ^5.0 || ^6.0 || ^7.0"
     },
     "autoload": {
         "psr-4": {