Bump tox from 3.26.0 to 3.27.0

Bumps [tox](https://github.com/tox-dev/tox) from 3.26.0 to 3.27.0.
- [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@3.26.0...3.27.0)

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

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

Author: dependabot[bot]

requirements_dev_optional.txt

@@ -13,7 +13,7 @@ types-redis
 types-setuptools
 pymongo==4.3.2
 # optional test requirements
-tox==3.26.0
+tox==3.27.0
 coverage
 flake8==5.0.4
 pytest-cov==4.0.0