Bump virtualenv from 20.21.0 to 20.22.0 in /.github/workflows

Bumps [virtualenv](https://github.com/pypa/virtualenv) from 20.21.0 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@20.21.0...20.22.0)

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

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

.github/workflows/constraints.txt

@@ -1,4 +1,4 @@
 pip==23.1
 nox==2022.11.21
 nox-poetry==1.0.2
-virtualenv==20.21.0
+virtualenv==20.22.0