Update deps to fix some issues on PHP 7.2

Author: AydinHassan

composer.json

@@ -29,7 +29,7 @@
         "psr/http-message": "^1.0",
         "zendframework/zend-diactoros": "^1.3.6",
         "myclabs/php-enum": "^1.4",
-        "kadet/keylighter": "^0.8.2",
+        "kadet/keylighter": "^0.8.3",
         "nikic/php-parser": "^3.0"
     },
     "require-dev": {