Bump tox from 3.28.0 to 4.12.1

Bumps [tox](https://github.com/tox-dev/tox) from 3.28.0 to 4.12.1.
- [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@3.28.0...4.12.1)

---
updated-dependencies:
- dependency-name: tox
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

dev-requirements.txt

@@ -70,7 +70,7 @@ sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-qthelp==1.0.7
 sphinxcontrib-serializinghtml==1.1.10
 tornado==6.4
-tox==3.28.0
+tox==4.12.1
 tox-direct==0.4
 treecomp==1.0.0
 typer==0.9.0