build(deps): bump virtualenv in /.github/workflows (#963)

Bumps [virtualenv](https://github.com/pypa/virtualenv) from 20.24.6 to 20.24.7.
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/20.24.7/docs/changelog.rst)
- [Commits](pypa/virtualenv@20.24.6...20.24.7)

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

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

.github/workflows/constraints.txt

@@ -2,4 +2,4 @@ pip==23.3.1
 nox==2023.4.22
 nox-poetry==1.0.3
 poetry==1.7.1
-virtualenv==20.24.6
+virtualenv==20.24.7