Build(deps): Bump tox from 4.15.0 to 4.16.0 (#1772)

Bumps [tox](https://github.com/tox-dev/tox) from 4.15.0 to 4.16.0.
- [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@4.15.0...4.16.0)

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

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

requirements_test.txt

@@ -10,7 +10,7 @@ pytest==7.4.4
 pytest-asyncio==0.23.7
 pytest-timeout==2.3.1
 setuptools==70.2.0
-tox==4.15.0
+tox==4.16.0
 types-filelock==3.2.7
 types-freezegun==1.1.10
 types-pkg_resources==0.1.3