build(deps-dev): Bump virtualenv from 20.26.1 to 20.26.6
Bumps [virtualenv](https://github.com/pypa/virtualenv) from 20.26.1 to 20.26.6.
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst)
- [Commits](https://github.com/pypa/virtualenv/compare/20.26.1...20.26.6)
---
updated-dependencies:
- dependency-name: virtualenv
dependency-type: indirect
...
Signed-off-by: dependabot[bot] <support@github.com>
authored by