`--truths` should be optional for `tira-cli evaluate`

[TheMrSheldon]

Current behavior
--truths is is required:

tira/python-client/tira/tira_cli.py

Line 138 in d1f84d2

def setup_eval_command(parser: argparse.ArgumentParser) -> None:

Maybe there is some confusion in the code since there exist to similar methods: setup_evaluation_command and setup_eval_command:

tira/python-client/tira/tira_cli.py

Line 66 in d1f84d2

def setup_evaluation_command(parser: argparse.ArgumentParser) -> None:

setup_evaluation_command is never used.

Expected behavior
--truths is described as "Optional" for tira-cli evaluate.

[github-actions]

This issue has been marked stale because it has been open 60 days with no activity.