Update importlib-resources to 5.0.0

[pyup-bot]

This PR updates importlib-resources from 3.3.0 to 5.0.0.

Changelog

### 5.0.0 ``` ====== * Removed ``importlib_resources.trees``, deprecated since 1.3.0. ``` ### 4.1.1 ``` ====== * Fixed badges in README. ``` ### 4.1.0 ``` ====== * 209: Adopt `jaraco/skeleton <https://github.com/jaraco/skeleton>`_. * Cleaned up some straggling Python 2 compatibility code. * Refreshed test zip files without .pyc and .pyo files. ``` ### 4.0.0 ``` ====== * 108: Drop support for Python 2.7. Now requires Python 3.6+. ``` ### 3.3.1 ``` ====== * Minor cleanup. ```

Links

- PyPI: https://pypi.org/project/importlib-resources - Changelog: https://pyup.io/changelogs/importlib-resources/ - Repo: https://github.com/python/importlib_resources