Bump virtualenv from 20.16.6 to 20.16.7 (#3751)

Bumps [virtualenv](https://github.com/pypa/virtualenv) from 20.16.6 to 20.16.7.
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst)
- [Commits](pypa/virtualenv@20.16.6...20.16.7)

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

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -97,7 +97,7 @@ toml==0.10.2
 tomli==2.0.1
 typing-extensions==4.4.0
 urllib3==1.26.12
-virtualenv==20.16.6
+virtualenv==20.16.7
 yamllint==1.28.0
 zipp==3.10.0