Update peewee to 3.14.7

[pyup-bot]

This PR updates peewee from 3.14.6 to 3.14.7.

Changelog

3.14.7

Fix bug in APSW extension with Sqlite 3.35 and newer, due to handling of last
insert rowid with RETURNING. Refs 2479.

[View commits](https://github.com/coleifer/peewee/compare/3.14.6...3.14.7)

Links

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

[coveralls]

Coverage decreased (-0.5%) to 84.028% when pulling f548c35 on pyup-update-peewee-3.14.6-to-3.14.7 into 4fc27c7 on master.