allow symfony 6

Author: fd6130

composer.json

@@ -11,7 +11,7 @@
     },
     "require": {
         "php": ">=7.2.5",
-        "symfony/http-client": "^4.4|^5.0",
-        "symfony/yaml": "^4.4|^5.0"
+        "symfony/http-client": "^4.4|^5.0|^6.0",
+        "symfony/yaml": "^4.4|^5.0|^6.0"
     }
 }