Validate logdetective updates in stable Fedora

[TomasTomecek]

This is a followup to #86

We should create a simple smoke test for logdetective via tmt that will just print logdetective --help.

In python-llama-cpp we should run the test suite in Testing Farm, ideally with some small, basic models.

Updates of llama-cpp should be gated on these 2 test suites - we need to make sure that whole dependency stack won't break easily.

[TomasTomecek]

Initial work:
https://src.fedoraproject.org/rpms/python-llama-cpp-python/pull-request/12
https://src.fedoraproject.org/rpms/llama-cpp/pull-request/9#