Add support for Symfony v6 components (#178)

Author: arthurkushman

composer.json

@@ -45,7 +45,7 @@
     "ext-pcre": "*",
     "justinrainbow/json-schema": "^5.0",
     "symfony/yaml": "^3.0|^4.0|^5.0",
-    "symfony/routing": "^3.0|^4.0|^5.0",
+    "symfony/routing": "^3.0|^4.0|^5.0|^v6.0",
     "oodle/inflect": "^0.2",
     "psr/http-message": "^1.0",
     "willdurand/negotiation": "^2.2.1|^3"