⬆️ Bump virtualenv from 20.16.5 to 20.16.6

Bumps [virtualenv](https://github.com/pypa/virtualenv) from 20.16.5 to 20.16.6.
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst)
- [Commits](pypa/virtualenv@20.16.5...20.16.6)

---
updated-dependencies:
- dependency-name: virtualenv
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -299,7 +299,7 @@ unidecode==1.3.6
  # via sphinx-autoapi
 urllib3==1.26.12
  # via requests
-virtualenv==20.16.5
+virtualenv==20.16.6
  # via pre-commit
 wcwidth==0.2.5
  # via prompt-toolkit