Bump the pip-dependencies group with 2 updates

Bumps the pip-dependencies group with 2 updates: [tox](https://github.com/tox-dev/tox) and [virtualenv](https://github.com/pypa/virtualenv).


Updates `tox` from 4.27.0 to 4.28.4
- [Release notes](https://github.com/tox-dev/tox/releases)
- [Changelog](https://github.com/tox-dev/tox/blob/main/docs/changelog.rst)
- [Commits](tox-dev/tox@4.27.0...4.28.4)

Updates `virtualenv` from 20.31.2 to 20.32.0
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst)
- [Commits](pypa/virtualenv@20.31.2...20.32.0)

---
updated-dependencies:
- dependency-name: tox
  dependency-version: 4.28.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: pip-dependencies
- dependency-name: virtualenv
  dependency-version: 20.32.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: pip-dependencies
...

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

Author: dependabot[bot]

pyproject.toml

@@ -31,8 +31,8 @@ benchmarking = [
     "protobuf>=4.0.0"
 ]
 dev = [
-    "tox==4.27.0",
-    "virtualenv==20.31.2"
+    "tox==4.28.4",
+    "virtualenv==20.32.0"
 ]
 
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