chore(deps): bump virtualenv from 21.2.0 to 21.2.1 (#14628)

Bumps [virtualenv](https://github.com/pypa/virtualenv) from 21.2.0 to 21.2.1.
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst)
- [Commits](pypa/virtualenv@21.2.0...21.2.1)

---
updated-dependencies:
- dependency-name: virtualenv
  dependency-version: 21.2.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

ci-constraints-requirements.txt

@@ -334,7 +334,7 @@ urllib3==2.6.3 ; python_full_version >= '3.9'
     # via requests
 uv==0.11.5
     # via nox
-virtualenv==21.2.0
+virtualenv==21.2.1
     # via nox
 zipp==3.20.2 ; python_full_version < '3.9'
     # via