chore(deps-dev): Bump virtualenv from 20.4.6 to 20.22.0

Bumps [virtualenv](https://github.com/pypa/virtualenv) from 20.4.6 to 20.22.0.
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst)
- [Commits](pypa/virtualenv@20.4.6...20.22.0)

---
updated-dependencies:
- dependency-name: virtualenv
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements-dev.txt

@@ -30,5 +30,5 @@ requests==2.25.1
 six==1.16.0
 toml==0.10.2
 urllib3==1.26.5
-virtualenv==20.4.6
+virtualenv==20.22.0
 wrapt==1.12.1