Use separate log file for LibyuiClient

[OleksandrOrlov]

Log LibyuiClient calls to separate from autoinst-log.txt file.

• Related ticket: https://progress.opensuse.org/issues/89485
• Verification run: https://openqa.suse.de/tests/6306983/

[jknphy]

Good job researching this solution!
Just some comments about the structure of the code.
Btw if you could provide some VR failing instead of user cancelled perhaps would more clear to check.

[jknphy]

Looks really useful the logs as seen in the failed verification.
Once you run it with the fake commit I would recommend to stash or save it locally in another branch and drop if from remote, if you keep the commit, putting on WIP the PR would help the reviewer, I almost merge it :)
Alternative, in the first comment you can specify the exact command to run before merge it to delete a commit in a PR not owned by oneself (if it is simple command not some complicated rebase). I'm not sure if that exists :) ... just thinking loud.
Let me know when you are ready.

[OleksandrOrlov]

@jknphy Removed the additional commit.