docs: update README badge

README.md

@@ -1,7 +1,7 @@
 [![Latest Stable Version](https://img.shields.io/packagist/v/ecphp/cas-bundle.svg?style=flat-square)](https://packagist.org/packages/ecphp/cas-bundle)
 [![GitHub stars](https://img.shields.io/github/stars/ecphp/cas-bundle.svg?style=flat-square)](https://packagist.org/packages/ecphp/cas-bundle)
 [![Total Downloads](https://img.shields.io/packagist/dt/ecphp/cas-bundle.svg?style=flat-square)](https://packagist.org/packages/ecphp/cas-bundle)
-[![GitHub Workflow Status](https://img.shields.io/github/workflow/status/ecphp/cas-bundle/Continuous%20Integration/master?style=flat-square)](https://github.com/ecphp/cas-bundle/actions)
+[![GitHub Workflow Status][github workflow status]][github actions link]
 [![Scrutinizer code quality](https://img.shields.io/scrutinizer/quality/g/ecphp/cas-bundle/master.svg?style=flat-square)](https://scrutinizer-ci.com/g/ecphp/cas-bundle/?branch=master)
 [![Type Coverage](https://shepherd.dev/github/ecphp/cas-bundle/coverage.svg)](https://shepherd.dev/github/ecphp/cas-bundle)
 [![Code Coverage](https://img.shields.io/scrutinizer/coverage/g/ecphp/cas-bundle/master.svg?style=flat-square)](https://scrutinizer-ci.com/g/ecphp/cas-bundle/?branch=master)
@@ -14,3 +14,7 @@ A CAS bundle for Symfony.
 
 Read more on the dedicated documentation site:
 https://ecphp-cas-bundle.readthedocs.io/
+
+[github actions link]: https://github.com/ecphp/cas-lib/actions
+[github workflow status]:
+  https://img.shields.io/github/actions/workflow/status/ecphp/cas-bundle/continuous-integration.yml?branch=master&style=flat-square