chore(deps): bump virtualenv from 20.26.2 to 20.26.6

Bumps [virtualenv](https://github.com/pypa/virtualenv) from 20.26.2 to 20.26.6.
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst)
- [Commits](pypa/virtualenv@20.26.2...20.26.6)

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

Signed-off-by: dependabot[bot] <[email protected]>

package-requirements.txt

@@ -2,7 +2,7 @@ pip==24.0
 nox==2024.4.15
 nox-poetry==1.0.3
 poetry==1.8.3
-virtualenv==20.26.2
+virtualenv==20.26.6
 poetry-dynamic-versioning==1.4.0
 toml==0.10.2
 pyinstaller==6.8.0