tests: Use poetry install -vvv for debugging

Author: bkeryan

tox.ini

@@ -43,6 +43,6 @@ commands =
 base_python = python3.11
 commands =
    poetry run python -VV
-   poetry install -v --only main,docs
+   poetry install -vvv --only main,docs
    # Use -W to treat warnings as errors.
    poetry run sphinx-build -b html -W docs docs/_build