Allow Symfony ^8.0

Author: nicolas-grekas

composer.json

@@ -21,7 +21,7 @@
         "symfony/polyfill-ctype": "^1.8"
     },
     "require-dev": {
-        "symfony/console": "^6.4|^7.0"
+        "symfony/console": "^6.4|^7.0|^8.0"
     },
     "conflict": {
         "symfony/console": "<6.4"