chore(deps): update dependency six to v1.16.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
six	==1.14.0 -> ==1.16.0

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Release Notes

benjaminp/six (six)

### [`v1.16.0`](https://togithub.com/benjaminp/six/blob/HEAD/CHANGES#1160) [Compare Source](https://togithub.com/benjaminp/six/compare/1.15.0...1.16.0) - Pull request [#​343](https://togithub.com/benjaminp/six/issues/343), issue [#​341](https://togithub.com/benjaminp/six/issues/341), pull request [#​349](https://togithub.com/benjaminp/six/issues/349): Port \_SixMetaPathImporter to Python 3.10. ### [`v1.15.0`](https://togithub.com/benjaminp/six/blob/HEAD/CHANGES#1150) [Compare Source](https://togithub.com/benjaminp/six/compare/1.14.0...1.15.0) - Pull request [#​331](https://togithub.com/benjaminp/six/issues/331): Optimize `six.ensure_str` and `six.ensure_binary`.

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