Add release status badge

Author: zachborboa

README.md

@@ -3,6 +3,7 @@
 [![](https://img.shields.io/github/release/php-curl-class/php-curl-class.svg?style=flat-square&sort=semver)](https://github.com/php-curl-class/php-curl-class/releases/)
 [![](https://img.shields.io/github/license/php-curl-class/php-curl-class.svg?style=flat-square)](https://github.com/php-curl-class/php-curl-class/blob/master/LICENSE)
 [![](https://img.shields.io/github/workflow/status/php-curl-class/php-curl-class/ci?style=flat-square)](https://github.com/php-curl-class/php-curl-class/actions/workflows/ci.yml)
+[![](https://img.shields.io/github/workflow/status/php-curl-class/php-curl-class/Update%20Changelog?style=flat-square&label=release)](https://github.com/php-curl-class/php-curl-class/releases/)
 [![](https://img.shields.io/packagist/dt/php-curl-class/php-curl-class.svg?style=flat-square)](https://github.com/php-curl-class/php-curl-class/releases/)
 
 PHP Curl Class makes it easy to send HTTP requests and integrate with web APIs.