document removal of tox

Author: tobiasraabe

docs/source/changes.md

@@ -10,6 +10,7 @@ releases are available on [PyPI](https://pypi.org/project/pytask-parallel) and
 - {pull}`129` drops support for Python 3.8 and 3.9 and adds support for Python 3.14.
 - {pull}`130` switches type checking to ty.
 - {pull}`131` updates pre-commit hooks.
+- {pull}`132` removes the tox configuration in favor of uv and just.
 
 ## 0.5.1 - 2025-03-09