fix composer.json

Author: dandynaufaldi

composer.json

@@ -12,7 +12,7 @@
         "fideloper/proxy": "^4.0",
         "laravel/framework": "5.8.*",
         "laravel/tinker": "^1.0",
-        "pusher/pusher-php-server": "^3.4"
+        "pusher/pusher-php-server": "^3.4",
         "laravelcollective/html": "^5.8"
     },
     "require-dev": {