Update peewee to 3.14.9

[pyup-bot]

This PR updates peewee from 3.14.8 to 3.14.9.

Changelog

3.14.9

* Allow calling `table_exists()` with a model-class, refs
* Improve `is_connection_usable()` method of `MySQLDatabase` class.
* Better support for VIEWs with `playhouse.dataset.DataSet` and sqlite-web.
* Support INSERT / ON CONFLICT in `playhosue.kv` for newer Sqlite.
* Add `ArrayField.contained_by()` method, a corollary to `contains()` and
the `contains_any()` methods.
* Support cyclical foreign-key relationships in reflection/introspection, and
also for sqlite-web.
* Add magic methods for FTS5 field to optimize, rebuild and integrity check the
full-text index.
* Add fallbacks in `setup.py` in the event distutils is not available.

[View commits](https://github.com/coleifer/peewee/compare/3.14.8...3.14.9)

Links

• PyPI: https://pypi.org/project/peewee
• Changelog: https://pyup.io/changelogs/peewee/
• Repo: https://github.com/coleifer/peewee/

[pyup-bot]

Closing this in favor of #81