build(deps): bump black from 22.3.0 to 22.6.0

Bumps [black](https://github.com/psf/black) from 22.3.0 to 22.6.0.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@22.3.0...22.6.0)

---
updated-dependencies:
- dependency-name: black
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements-test.txt

@@ -5,7 +5,7 @@
 
 # additional test tools for linting and coverage measurement
 coverage==6.4.1
-black==22.3.0
+black==22.6.0
 isort==5.10.1
 pylint==2.14.3
 mypy==0.961