Cannot configure kie-maven-plugin to read the rules from a different folder

kie-maven-plugin ignores sourceFolder configuration and there is no other option to set the rules directory. It always looks for rules in the project's folder.

In our case the DRL files are being generated, so the plugin needs to look for them in the generated-resources folder in the target directory.

We can workaround this using .gitignore and configure maven-clean to clean the folder inside the project structure, but it's quite messy.