fix maven badge

README.md

@@ -2,7 +2,7 @@
 
 [![The MIT License](https://img.shields.io/github/license/mojohaus/build-helper-maven-plugin.svg?label=License)](https://opensource.org/licenses/MIT)
 [![Maven Central](https://img.shields.io/maven-central/v/org.codehaus.mojo/build-helper-maven-plugin.svg?label=Maven%20Central)](http://search.maven.org/#search%7Cga%7C1%7Cbuild-helper-maven-plugin)
-[![Build Status](https://github.com/mojohaus/build-helper-maven-plugin/workflows/maven/badge.svg?branch=master)](https://github.com/mojohaus/build-helper-maven-plugin/actions?query=workflow%3Dmaven+branch%3Amaster)
+[![Build Status](https://github.com/mojohaus/build-helper-maven-plugin/workflows/GitHub%20CI/badge.svg?branch=master)](https://github.com/mojohaus/build-helper-maven-plugin/actions/workflows/maven.yml?query=branch%3Amaster)
 
 This is the [build-helper-maven-plugin](http://www.mojohaus.org/build-helper-maven-plugin/) contains
 serveral goals to support you in different kinds of task, like parsing version information,