Update setuptools to 49.1.2

[pyup-bot]

This PR updates setuptools from 49.1.1 to 49.1.2.

Changelog

49.1.2

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* 2232: In preparation for re-enabling a local copy of distutils, Setuptools now honors an environment variable, SETUPTOOLS_USE_DISTUTILS. If set to 'stdlib' (current default), distutils will be used from the standard library. If set to 'local' (default in a imminent backward-incompatible release), the local copy of distutils will be used.

Links

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

[duckinator]

bors r+

[bors]

Build succeeded:

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• FreeBSD LANG:C.UTF-8 LC_ALL:C.UTF-8 PYTHON:3.7
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• Lint
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• macOS
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