build(deps): bump tox from 4.55.1 to 4.56.0

Bumps [tox](https://github.com/tox-dev/tox) from 4.55.1 to 4.56.0.
- [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@4.55.1...4.56.0)

---
updated-dependencies:
- dependency-name: tox
  dependency-version: 4.56.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements_test.txt

@@ -2,7 +2,7 @@
 pytest-homeassistant-custom-component
 mypy==2.1.0
 ruff==0.15.19
-tox==4.55.1
+tox==4.56.0
 aioresponses
 pytest<10
 aiohttp_cors