Bump virtualenv from 20.26.3 to 20.26.6

Bumps [virtualenv](https://github.com/pypa/virtualenv) from 20.26.3 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@20.26.3...20.26.6)

---
updated-dependencies:
- dependency-name: virtualenv
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -171,7 +171,7 @@ typing-extensions==4.12.2
     #   opentelemetry-sdk
 tzlocal==5.2
     # via apscheduler
-virtualenv==20.26.3
+virtualenv==20.26.6
     # via
     #   pre-commit
     #   tox