Make package requirements consistent

Author: curry684

composer.json

@@ -21,7 +21,7 @@
     },
     "require": {
         "php": "^7.2",
-        "symfony/event-dispatcher": "^4.1|^5.0",
+        "symfony/event-dispatcher": "^4.2|^5.0",
         "symfony/framework-bundle": "^4.2|^5.0",
         "symfony/property-access": "^4.2|^5.0",
         "symfony/translation": "^4.2|^5.0"