Bump tox-uv from 1.15.0 to 1.16.0

Bumps [tox-uv](https://github.com/tox-dev/tox-uv) from 1.15.0 to 1.16.0.
- [Release notes](https://github.com/tox-dev/tox-uv/releases)
- [Commits](tox-dev/tox-uv@1.15.0...1.16.0)

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

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

requirements.txt

@@ -60,7 +60,7 @@ tox==4.23.2
     # via
     #   timezone-tools (pyproject.toml)
     #   tox-uv
-tox-uv==1.15.0
+tox-uv==1.16.0
     # via timezone-tools (pyproject.toml)
 typing-extensions==4.12.2
     # via timezone-tools (pyproject.toml)