chore(deps-dev): bump xenon from 0.8.0 to 0.9.0

Bumps [xenon](https://github.com/rubik/xenon) from 0.8.0 to 0.9.0.
- [Release notes](https://github.com/rubik/xenon/releases)
- [Changelog](https://github.com/rubik/xenon/blob/master/CHANGELOG)
- [Commits](rubik/xenon@v0.8.0...v0.9.0)

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

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

Author: dependabot[bot]

poetry.lock

@@ -48,7 +48,7 @@ pdoc3 = "^0.10.0"
 pytest-asyncio = "^0.16.0"
 bandit = "^1.7.1"
 radon = "^5.1.0"
-xenon = "^0.8.0"
+xenon = "^0.9.0"
 flake8-eradicate = "^1.2.0"
 flake8-bugbear = "^22.1.11"
 mkdocs-git-revision-date-plugin = "^0.3.1"