Add another CLI test using template set jars

[jan-vcapgemini]

We need to add a CLI systemtest which uses template set jars in a downloaded folder only.

https://github.com/devonfw/cobigen/blob/217c8a464f27b965c3153ee30de575c5c2be3d56/cobigen-cli/cli-systemtest/src/test/java/com/devonfw/cobigen/cli/systemtest/GenerateCommandIT.java#L131