correct do_fetch method

Author: esrakartalOpt

lib/optimizely/cmab/cmab_client.rb

@@ -156,7 +156,7 @@ def _do_fetch_with_retry(url, request_body, retry_config, timeout)
       attempt = 0
       backoff = @retry_config.retry_delay
       begin
-        return _do_fetch(...)
+        return _do_fetch(url, request_body, timeout)
       rescue => e
         if attempt < @retry_config.max_retries
           @logger.log(Logger::INFO, "Retrying CMAB request (attempt #{attempt + 1}) after #{backoff} seconds...")