Bump tox from 4.28.3 to 4.28.4 (#554)

Bumps [tox](https://github.com/tox-dev/tox) from 4.28.3 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@4.28.3...4.28.4)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pyproject.toml

@@ -49,7 +49,7 @@ dev = [
     "pytest == 8.4.1",
     "pytest-tldr == 0.2.5",
     "setuptools_scm == 8.3.1",
-    "tox == 4.28.3",
+    "tox == 4.28.4",
 ]
 # Docs are always built on a specific Python version; see RTD and tox config files.
 docs = [