build(deps): bump pylint from 2.15.5 to 2.15.6

Bumps [pylint](https://github.com/PyCQA/pylint) from 2.15.5 to 2.15.6.
- [Release notes](https://github.com/PyCQA/pylint/releases)
- [Commits](pylint-dev/pylint@v2.15.5...v2.15.6)

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

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

Author: dependabot[bot]

requirements-test.txt

@@ -7,6 +7,6 @@
 coverage==6.5.0
 black==22.10.0
 isort==5.10.1
-pylint==2.15.5
+pylint==2.15.6
 mypy==0.991
 bandit==1.7.4