Update src/Appwrite/Auth/OAuth2/Auth0.php

Co-authored-by: Christy Jacob <christyjacob4@gmail.com>

src/Appwrite/Auth/OAuth2/Auth0.php

@@ -195,7 +195,7 @@ class Auth0 extends OAuth2
      * Decode the JSON stored in appSecret
      * @return array
      */
-    protected function decodeJson(): array
+    protected function getAppSecret(): array
     {    
         try {
             $secret = \json_decode($this->appSecret, true);