explicitly require symfony/event-dispatcher

Author: mlebkowski

composer.json

@@ -17,7 +17,8 @@
         "phpstan/phpdoc-parser": "^2.0",
         "phpdocumentor/reflection-docblock": "^5.6",
         "wondernetwork/php-collection-library": "^10.0",
-        "monolog/monolog": "^3.10"
+        "monolog/monolog": "^3.10",
+        "symfony/event-dispatcher": "^7.4"
     },
     "license": "MIT",
     "autoload": {