Update symfony/framework-bundle version constraint (#27)

Allow Symfony 8
by @tacman

Author: tacman

composer.json

@@ -22,7 +22,7 @@
     ],
     "require": {
         "php": "^8.1",
-        "symfony/framework-bundle": "^6.1|^7.0"
+        "symfony/framework-bundle": "^6.1|^7.0|^8.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.6|^10.0|^11|^12",