chore(deps): update dependency virtualenv to v20.26.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
virtualenv	==20.25.3 -> ==20.26.0

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Release Notes

pypa/virtualenv (virtualenv)

### [`v20.26.0`](https://togithub.com/pypa/virtualenv/releases/tag/20.26.0) [Compare Source](https://togithub.com/pypa/virtualenv/compare/20.25.3...20.26.0) ##### What's Changed - release 20.25.3 by [@​gaborbernat](https://togithub.com/gaborbernat) in [https://github.com/pypa/virtualenv/pull/2704](https://togithub.com/pypa/virtualenv/pull/2704) - Fixed a case when template variable is WindowsPath by [@​NtWriteCode](https://togithub.com/NtWriteCode) in [https://github.com/pypa/virtualenv/pull/2707](https://togithub.com/pypa/virtualenv/pull/2707) - Allow builtin interpreter discovery to find specific Python versions given a general spec by [@​flying-sheep](https://togithub.com/flying-sheep) in [https://github.com/pypa/virtualenv/pull/2709](https://togithub.com/pypa/virtualenv/pull/2709) ##### New Contributors - [@​NtWriteCode](https://togithub.com/NtWriteCode) made their first contribution in [https://github.com/pypa/virtualenv/pull/2707](https://togithub.com/pypa/virtualenv/pull/2707) - [@​flying-sheep](https://togithub.com/flying-sheep) made their first contribution in [https://github.com/pypa/virtualenv/pull/2709](https://togithub.com/pypa/virtualenv/pull/2709) **Full Changelog**: https://github.com/pypa/virtualenv/compare/20.25.3...20.26.0

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