Fix lint

Author: esrakartalOpt

lib/optimizely/cmab/cmab_client.rb

@@ -150,7 +150,7 @@ def _do_fetch_with_retry(url, request_body, retry_config, timeout)
       backoff = retry_config.retry_delay
       last_error = nil
 
-      0..retry_config.max_retries).each do |attempt|
+      (0..retry_config.max_retries).each do |attempt|
         begin
           return _do_fetch(url, request_body, timeout)
         rescue Optimizely::CmabInvalidResponseError