use maven artifacts of checkstyle instead of supplying zip/jar in git repository

Builds of https://github.com/checkstyle/checkstyle are uploaded to https://repo1.maven.org/maven2/com/puppycrawl/tools/checkstyle/

Currently the source and the resulting jar ist copied manually to https://github.com/checkstyle/eclipse-cs/tree/master/net.sf.eclipsecs.checkstyle

But why?

These artifacts can be referenced (and unpacked, if you need this) in https://github.com/checkstyle/eclipse-cs/blob/master/net.sf.eclipsecs.checkstyle/pom.xml
see https://maven.apache.org/plugins/maven-dependency-plugin/unpack-mojo.html

This way the eclipse-cs git repository would not increase in size by nearly 20MB for every checkstyle update.