Scheduled weekly dependency update for week 39

[pyup-bot]

Update pytest-xdist from 1.23.0 to 1.23.2.

Changelog

### 1.23.2 ``` ================================ Bug Fixes --------- - `344 <https://github.com/pytest-dev/pytest-xdist/issues/344>`_: Fix issue where Warnings could cause pytest to fail if they do not set the args attribute correctly. ``` ### 1.23.1 ``` ================================ Bug Fixes --------- - `341 <https://github.com/pytest-dev/pytest-xdist/issues/341>`_: Fix warnings transfer between workers and master node with pytest >= 3.8. ```

Links

- PyPI: https://pypi.org/project/pytest-xdist - Changelog: https://pyup.io/changelogs/pytest-xdist/ - Repo: https://github.com/pytest-dev/pytest-xdist