Remove league/event dependency

Signed-off-by: Eugene Borovov <[email protected]>

Author: eugene-borovov

composer.json

@@ -6,7 +6,6 @@
     "require": {
         "php": "^7.2 || ^8.0",
         "ext-openssl": "*",
-        "league/event": "^2.2",
         "lcobucci/jwt": "^3.4 || ^4.0",
         "psr/event-dispatcher": "^1.0",
         "psr/http-message": "^1.0.1",
@@ -20,6 +19,9 @@
         "phpstan/phpstan-phpunit": "^0.12.16",
         "roave/security-advisories": "dev-master"
     },
+    "suggest": {
+        "league/event": "Required to use the EventDispatcher (^3.0)."
+    },
     "repositories": [
         {
             "type": "git",