Bump virtualenv from 20.27.1 to 20.28.0

Bumps [virtualenv](https://github.com/pypa/virtualenv) from 20.27.1 to 20.28.0.
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst)
- [Commits](pypa/virtualenv@20.27.1...20.28.0)

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

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

requirements.txt

@@ -1,6 +1,6 @@
 packaging == 24.2 --hash=sha256:09abb1bccd265c01f4a3aa3f7a7db064b36514d2cba19a2f694fe6150451a759
 pipenv == 2024.4.0 --hash=sha256:282ac23b4a2c60cefe22bf1b747f49d55d87719d538b631e9212276920a36f68
-virtualenv == 20.27.1 --hash=sha256:142c6be10212543b32c6c45d3d3893dff89112cc588b7d0879ae5a1ec03a47ba
+virtualenv == 20.28.0 --hash=sha256:23eae1b4516ecd610481eda647f3a7c09aea295055337331bb4e6892ecce47b0 --hash=sha256:2c9c3262bb8e7b87ea801d715fae4495e6032450c71d2309be9550e7364049aa
 virtualenv-clone == 0.5.7 --hash=sha256:44d5263bceed0bac3e1424d64f798095233b64def1c5689afa43dc3223caf5b0
 certifi == 2024.8.30 --hash=sha256:922820b53db7a7257ffbda3f597266d435245903d80737e34f8a45ff3e3230d8
 setuptools == 75.6.0 --hash=sha256:8199222558df7c86216af4f84c30e9b34a61d8ba19366cc914424cdbd28252f6 --hash=sha256:ce74b49e8f7110f9bf04883b730f4765b774ef3ef28f722cce7c273d253aaf7d