* Fixed the error when send event
fix https://github.com/friendsofhyperf/components/issues/619
* Fix response header key in HttpClient.php
* Fix response header key in HttpClient.php
* Fix response header key in HttpClient.php
* feat: Update response header key in HttpClient.php
The response header key in the `HttpClient.php` file was updated to use the correct capitalization for "Queued". This change improves consistency and readability in the code.
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Co-authored-by: Deeka Wong <8337659+huangdijia@users.noreply.github.com>