Bump virtualenv from 20.26.6 to 20.36.1

Bumps [virtualenv](https://github.com/pypa/virtualenv) from 20.26.6 to 20.36.1.
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst)
- [Commits](pypa/virtualenv@20.26.6...20.36.1)

---
updated-dependencies:
- dependency-name: virtualenv
  dependency-version: 20.36.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -63,4 +63,4 @@ sphinxcontrib-svg2pdfconverter==1.2.2
 sphinxmark==1.0.0
 typing_extensions==4.9.0
 urllib3==2.6.3
-virtualenv==20.26.6
+virtualenv==20.36.1