Update text-unidecode to 1.3

[pyup-bot]

This PR updates text-unidecode from 1.2 to 1.3.

Changelog

1.3

* text-unidecode is now dual-licensed under Artistic License and GPL 1 / GPL 2+, to cause less problems for distributions. Choose license which fits better.
* Declare Python 3.7 support, don't declare Python 3.3 support

Links

• PyPI: https://pypi.org/project/text-unidecode
• Changelog: https://data.safetycli.com/changelogs/text-unidecode/
• Repo: https://github.com/kmike/text-unidecode/