⬆️ Bump pillow from 7.0.0 to 7.1.2 (#90)

Bumps [pillow](https://github.com/python-pillow/Pillow) from 7.0.0 to 7.1.2.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/master/CHANGES.rst)
- [Commits](python-pillow/Pillow@7.0.0...7.1.2)

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