Fix CS in composer.json

Author: jderusse

composer.json

@@ -23,7 +23,7 @@
     "require-dev": {
         "symfony/event-dispatcher-contracts": "^2",
         "symfony/http-client-contracts": "^2",
-        "symfony/messenger": "^4.4 || ^5.0"
+        "symfony/messenger": "^4.4|^5.0"
     },
     "conflict": {
         "symfony/http-kernel": "<4.4",