Use stable version of knp github clinet

Author: Nyholm

composer.json

@@ -11,7 +11,7 @@
         "doctrine/doctrine-migrations-bundle": "^3.0",
         "doctrine/orm": "^2.7",
         "incenteev/composer-parameter-handler": "~2.0",
-        "knplabs/github-api": "3.3.x-dev",
+        "knplabs/github-api": "^3.3",
         "nyholm/psr7": "^1.3",
         "sensio/framework-extra-bundle": "^5.2",
         "symfony/console": "^5.2",