switch build badge from Travis to GH

Author: hboutemy

README.md

@@ -3,7 +3,7 @@ Plexus-archiver
 
 [![Apache License, Version 2.0, January 2004](https://img.shields.io/github/license/codehaus-plexus/plexus-archiver.svg?label=License)](http://www.apache.org/licenses/)
 [![Maven Central](https://img.shields.io/maven-central/v/org.codehaus.plexus/plexus-archiver.svg?label=Maven%20Central)](https://search.maven.org/artifact/org.codehaus.plexus/plexus-archiver)
-[![Build Status](https://travis-ci.org/codehaus-plexus/plexus-archiver.svg?branch=master)](https://travis-ci.org/codehaus-plexus/plexus-archiver)
+[![GitHub CI](https://github.com/codehaus-plexus/plexus-archiver/actions/workflows/maven.yml/badge.svg)](https://github.com/codehaus-plexus/plexus-archiver/actions/workflows/maven.yml)
 [![Reproducible Builds](https://img.shields.io/badge/Reproducible_Builds-ok-green?labelColor=blue)](https://github.com/jvm-repo-rebuild/reproducible-central#org.codehaus.plexus:plexus-archiver)
 
 The current master is now at https://github.com/codehaus-plexus/plexus-archiver