pip prod(deps): bump tox from 3.25.0 to 3.25.1

Bumps [tox](https://github.com/tox-dev/tox) from 3.25.0 to 3.25.1.
- [Release notes](https://github.com/tox-dev/tox/releases)
- [Changelog](https://github.com/tox-dev/tox/blob/master/docs/changelog.rst)
- [Commits](tox-dev/tox@3.25.0...3.25.1)

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

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

requirements-testing.txt

@@ -11,7 +11,7 @@ autopep8==1.6.0
 mypy==0.961
 py-spy==0.3.12
 codecov==2.1.12
-tox==3.25.0
+tox==3.25.1
 mccabe==0.6.1
 pylint==2.13.7
 rope==1.1.1