Allow Symfony ^8.0

Author: nicolas-grekas

composer.json

@@ -18,12 +18,12 @@
     "require": {
         "php": ">=8.2",
         "psr/log": "^1|^2|^3",
-        "symfony/var-dumper": "^6.4|^7.0"
+        "symfony/var-dumper": "^6.4|^7.0|^8.0"
     },
     "require-dev": {
-        "symfony/console": "^6.4|^7.0",
-        "symfony/http-kernel": "^6.4|^7.0",
-        "symfony/serializer": "^6.4|^7.0",
+        "symfony/console": "^6.4|^7.0|^8.0",
+        "symfony/http-kernel": "^6.4|^7.0|^8.0",
+        "symfony/serializer": "^6.4|^7.0|^8.0",
         "symfony/deprecation-contracts": "^2.5|^3",
         "symfony/webpack-encore-bundle": "^1.0|^2.0"
     },